The number of foreign students attending Chinese universities _____ rising steadily since 1990

    A. is              B. are            C. has been       D. have been 

 — Why does the lake smell terrible?

— Because large quantities of water ____.

    A. have polluted               B. is being polluted

    C. has been polluted            D. have been polluted

 Although we have only met ______, I find we have a lot in common.

    A. from time to time                    B. in time  

    C. by chance                              D. over and over again

 Only ______ allowed to take part in the speech contest in our class and so the rest ______ disappointed.

    A. was John; were                        B. John was; were

    C. was John; was                         D. John was; was

 This picture book is intended ______ the children who begin to learn Chinese words.

    A. to                B. with             C. for              D. in

 She is so ______ towards her employees that they all respect her.

    A. considering     B. considerable    C. considered     D. considerate

 While looking for a book, I ______ this old photo taken in college.

    A. came into                              B. came across   C. came up        D. came out

 Children who ______ well will be given a red flower and an apple as encouragement.

    A. behave         B. prove            C. show           D. look

 This job is ______ doing, but it isn’t ______ to spend so much time on it.

    A. worth; worth                            B. worth; worthwhile  

    C. worthwhile; worth                 D. worthwhile; worthwhile

 Though he is ______ orphan, he is leading ______ happy life.

    A. an; the               B. an; /               C. /; a                             D. an; a