When the author was a medical student, he______ .

My teacher recommended that I ___ as careful as possible when I took an exam.

The reason____ I didn’t attend the lecture was that I got a bad cold that day.

I have found some articles ___ the harmful effects of drinking.

You must have sent her off at the airport yesterday, ____ ?

___ is left over may be put into the refrigerator, where it will keep for 2 to 3 weeks.

Whenever the man says something against his wife, she_____ lose her temper.

Mark plays ___ violin, while his brother prefers to play ___ baseball.

The news has not yet been officially ___ by the government.

There are two major problems linked with atomic power plants, ____ one is related to nuclear waste.

When the author wrote his first novel, _______.

Having heard so much about Mr. Smith， they were _____ to meet him.