I brush my teeth every day at 7 O’clock in the            685. (2) Been is the Past Participle of be
     morning is the right sentence.                                 gone is the Past Participle of go.
670. (2) below and under can mean lower than; below is              Been describes completed visits.
     used when one thing is not directly under another.             When we refer to a destination, to (Prep.) is used.
     under is used when something is covered by what is             Here, to (Prep.) is the right usage.
     over it.                                                  686. (1) engulfed (V.) : flow over/ cover completely
     Hence, live below poverty line is the right usage.             circled (V.) : to move in a circle, especially in the air
671. (2) Here, Only I can do is the right usage. It means :         encircled (V.) : to surround somebody/something
     Only I not others.                                             completely in a circle
672. (3) on (Prep.) is used when expressing one’s good              surrounded (V.) : confined on all sides ; encircled
     wishes in the context of a happy event                         engulfed is generally used of a natural force which
     for (Pre.) is used when offering praise for someone’s          sweeps over something so as to surround/cover it
     achievement.                                                   completely.
   l Congratulations on winning the lottery !
                                                                    Hence, engulfed is the right usage.
   l Congratulations for completing 100 days without an
                                                               687. (1) Predict (v.) : tell in advance
     accident !
                                                                    declare (V.) : to say something officially/publicly
     Here, on (Prep.) is the right usage.
                                                                    augur (V.) : to be a sign that something will be suc-
673. (3) The sentence is showing past time. Hence, lost
                                                                    cessful/not successful in the future
     her doll is the right usage.
                                                                    portend (V.) : to be a sign or warning of something
674. (1) In such cases, where a Negative Clause has to be
                                                                    that is going to happen in the future, especially some-
     linked, nor is used at the beginning of the Second
                                                                    thing bad/unpleasant
     Clause, followed by an Aux. V./Mod./be, followed
     by the Sub. and the Main V., if there is any.                  Here, predict is the right usage.
  l I don’t like him, nor does my sister.
                                                               688. (1) transcoding (V.) : computing to transfer date from
                              ̄             ̄                         one format to another
                          Aux. V.       Sub.                        Here, is one of the items is the right usage.
    Hence, nor did I is the right usage.                       689. (4) No improvement
675. (1) difficult to do/understand/answer                          throwing tantrums (Id.) : putting on an active dis-
     Here, hard will replace hardly                                 play of childish temper ; to become very angry and
     Old things die hard means take a long time to change/          unreasonable
     end it — used in Present Tense                                 expressing emotions : expressing feelings (happiness,
676. (2) The sentence is Negative. Hence, can one (Affir-           anger, frustration, etc.)
     mative) is the right usage.                               690. (2) Reflexive Pro. is used when we want to refer back
677. (1) Singular Subject agrees with Singular Verb.                to the Sub. of the sentence/clause.
     Hence, was is the right usage.                                 Hence, absented himself is the right usage.
678. (3) Here, was pleased is the right usage.                 691. (1) Here, when the conductor arrives is the right
679. (3) tentacles (N.) : used for feeling or holding things,       usage.
     for moving or for getting food                            692. (2) obsolete (Adj.) : no longer in use
     fins (N.) : a thin flat part that sticks out from a body       redundant (Adj.) : more than is needed, desired/
     of a fish, used for swimming and keeping balance               required
     flippers (N.) : a flat part of the body of some sea            superfluous (Adj.) : serving no useful purpose; pointless
     animals, used for swimming                                     extinct (Adj.) : no longer in existence
     Here, tentacles is the right usage.                            Here, obsolete is the right usage.
680. (3) The to-Inf. is used for indicating the purpose/       693. (4) No improvement
     intention of an action. In this case to has the same      694. (3) Here, is a joy is the right usage.
     meaning as in order to/so as to                           695. (3) off (Prep.) : down or away from a place/at a dis-
     Hence, to keep the city clean is the right usage.              tance in space/time
681. (1) for (Prep.) is used for saying how long something          Hence, fell off the roof is the right usage.
     lasts/continues/has been the case (a period of time)      696. (1) Here, because of the is the right usage.
     since (Conj.) is used for saying that something has       697. (1) Here, fled is the right usage.
     been the case from a particular time in the past until
                                                               698. (2) Sub. is used before the (V.)
     now (a point in time)
                                                                    Hence, why you did not call is the right usage.
   l He has been living in Paris for three months.
                                                               699. (4) No improvement
   l He has been living in Paris since 1980.
                                                               700. (3) Use of double negatives – couldn’t and no more
     Here, for is the right usage.
                                                                    is incorrect. Hence, anymore will replace no more
682. (4) No improvement
                                                               701. (1) rumbles (V.) to move slowly and heavily
683. (1) help (V.) is usually followed by a Gerund and not
                                                                    rattles (V.) : to make a series of short loud sounds as
     an Inf.
                                                                    it moves somewhere
     Hence, laughing is the right usage.
                                                                    ripples (V.) : to move or to make something move in
684. (2) The sentence is Negative. Hence, question tag              very small waves
     should be Affirmative i.e. does she ? is the right usage.
                                                                    Hence, rumbles is the right usage here.