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练习题

1. The law prevents these birds ____.

A. from killing

B. from being killed

C. not to be killed

D. not killing

答案：B

2. I can hardly imagine Peter __ across the Atlantic Ocean in five days.

A. sail

B. to sail

C. sailing

D. to have sailed

答案：C

3.Her room was found __ into yesterday afternoon, but nothing was found ____.

A. to break; steal

B. to be broken; stolen

C. being broken; robbed

D. broken; stolen

答案：D

来源：【文得学习网】