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 —Five tickets for adults, please.

—I’m sorry. Tickets are ________ to be sold out.

       A. possible                    B. likely                        C. able                        D. gradual

 I really don’t know why his latter discovery, ________ greater importance to science, is not so well-known to the world.

   A. which I think is of                   B. which I think it is of   

   C. of which I think it is                  D.I think which is of

 I met one of my students the other day. After several years, she changed a lot and looked different from ________ she used to be. 

A. that                B. whom              C. what             D. who

 Our manager might return from abroad the coming weekend, but nobody ________ able to finish our task by then.

A. has been                   B. will have been           C. had been                  D. was

 With everything needed ________ , Mrs. Jackson went to the supermarket after work in a hurry.

A. buying                       B. to buy                      C. bought                            D. buy

 —Robert is indeed a wise man.

—Oh, yes. How I regretted ________ his advice!

   A. to take                                                         B. to have not taken   

C. taking                                                    D. not having taken

 80% of the audience in the stadium ________ astonished when the singer fell off the stage.

A. is                              B. were                        C. was                         D. are

 The government work report by Premier Wen conveys a variety of issues, and social justice ________.

A. in common              B. in general             C. in particular         D. in practice

 The living room is clean and tidy, with a dining table already ________ for a meal to be cooked.

A. laid                       B. laying          C. to lay           D. being laid

 I often have conversations with John on         phone while keeping in touch with Tom         ________letter.

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