题目内容

在数字电路中,基本的工作信号是___(数字/模拟)信号。

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There _________lots of people at the restaurant when I got there.

A. is
B. was
C. are
D. werre

--- Can she go out on school nights?--- No, she _________. And I can't,.

A. doesn't; too
B. doesn't; either
C. can't; too
D. can't; either

Let me_________ Tony and Daming_______ you.

A. introduce; to
B. to introduce; for
C. introduce; for
D. to introduce; to

We felt _________ when Liu Xiang won the first prize again in the race.

A. brave
B. proud
C. successful
D. worried

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