单项选择题

It is （） good policy to keep physically fit, winter and summer alike.

A. a
B. an
C. /
D. the

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单项选择题

Rapport to most of us [Americans] is less important than performance.()

A. Whether a person is successful is most important.
B. Friendly relationship is not as important as performing skills.
C. One's achievement is more important than his relationship with us.
D. What one says in his report is more important than what he has achieved.

单项选择题

I stared at the canteen as if it were a mirage.()

A. I imagined seeing a canteen.
B. I looked at the canteen closely.
C. I knew there wasn't a canteen actually.
D. I couldn't believe that the canteen was still there.