题目内容

Lots of empty boots were found under the old man’s bed. He must have done nothing but ______.

A. drink
B. to drink
C. drinking
D. drunk

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The local health organization is reported ___ twenty-five years age when Dr. Adudon became its first president.

A. to be set up
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I appreciated ______the opportunity to study abroad two years ago.

A. having been given
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