测试精编

1. Did you find out ________ the pie out of oven?

A. to take      B. have taken       C. when to take        D. being taken

2. You would be irritated if you watched the mail ________ on your desk every day.

A. putting up   B. to be put up      C. to pile up           D. pile up

3. We shall set Jim ________ the passage.

A. explaining   B. explained        C. to explain          D. explain

4. In fact, she would rather leave for San Francisco ________ in Los Angeles.

A. tostay      B. than stay         C. than staying        D. than have stayed

5. Madame Curies is believed ________ the radium.

A. discovering   B. having discovered   C. to have discovered   D. to discover