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16. She gets about quite a lot, ______ for an international company.

A. working                               B. works

C. having worked                      D. to be working 

17. _____ him enough time to get home before you telephone.

A. Give                                     B. To give

C. Giving                                  D. Given

18. She didn’t want to _____ a secretary all her life, so she went back to college.

A. go on being                           B. go on to be

C. go to be                                D. go being

19. He was reading his book, completely _____ to the world.

A. lost                                       B. losing

C. to lose                                   D. to having lost

20. Don’t sit there ______ — come and help me!

A. watch                                    B. watching

C. to watch                                D. to be watching

21. I found I could easily make myself ______ by using sign language.

A. understood                             B. understand

C. to understand                          D. being understood

22. Do not leave the building unless ______ to do so.

A. to instruct                               B. instructed

C. being instructed                       D. instructing

23. If you don’t succeed the first time, ______ again.

A. try                                          B. to try

C. trying                                      D. to be trying

24. He’d walked the streets all night ______ somewhere to stay.

A. looked                                     B. looked for

C. looking                                    D. looking for

25. Look at that little boy ______ about — perhaps he’s lost his mother.

A. wander                                    B. wandering

C. to be wandering                        D. being wandering

【參考答案】

1—5 BCBAA  6—10 CCACA

11—15 BCABA  16—20 AAAAB

21—25 ABADB (from www.52ysedu.com)

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