16. “________ many people say that life is the art of living, I believe that life is the art of drawing without an eraser,” said Christine, CEO of the Greater China division from a bank in Singapore.
A. Once B. Since C. While D. If
17．He risked ________his life to save the ________ girl.
A. to lose, to drown B. losing , drowned
C. losing, drowning D. lost, drowned
18. ---How do you respond when ________ whether your girlfriend or wife looks fat?
--- Never say what you think. She just wants some reassurance(肯定) from you that she’s
attractive.
A. asking B. asked C. to ask D. being asked
19. He hasn’t got any hobbies---________ you call watching TV a hobby.
A. If B. When C. Unless D. Since
20. If ________, the experiment will be successful.
A．do carefully. B．did carefully. C．carefully done. D．doing carefully.
21. ________ (make) a living, she had to work from morning till night.
A. to make B. making C. having made D. to making
22.As we approached the work site, the workers were seen ________ the new house.
A. building B. build C. built D. to build
23. This book is worthy of ________ twice .
A. reading B. read C. having read D. being read
