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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 m.52ysedu.com)
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