9. “I got to my office on time.”“What if your car?____?”??
A. would broken downB. broke down?
C. breaks downD. had broken down?
10. If the weather had been more favorable, the crops ?____? still better.?
A. will be growingB. are growing?
C. would have been growingD. would be growing?
11. Before the invention of refrigeration, the ?____? of fish and meat was a thorny problem.?
A. keepingB. maintaining?
C. protectionD. preservation?
12. A sudden movement caught the pony’s attention and he instantly became ?____? and alert.?A. doubtfulB. suspicious?
C. suspecting D. hesitating
13. During their first teacher?training year, the students often visited local schools for the ?____? of lessons.?
A. investigationB. observation?
C. inspectionD. observance?
14. I’ll be very glad that you agree to?____? this matter.?
A. look upB. look for ?
C. look overD. look into?
15. As there was a power cut in the hospital, the surgeon had to ?____? the operation.?
A. call forB. call off ?
C. call onD. call out?
16. From ancient times, the valley of the Nile has been made ?____? by the river floods.?
A. famousB. desertedC. attractiveD. fertile?
17. The manager made a far?seeing decision ?____? what she had said.?
A. in the light ofB. in the course of?
C. in favor ofD. in the face of?