单项选择题

With the development of the Internet, people’s life ______ in the past few years.

A. is improved

B. has been improved
C. is improving

D. had been improved
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单项选择题
A. He was asked to hand in his paper. B. He didn’t hand in his paper on time. C. He handed in his paper earlier. D. The teacher liked his paper very much.
A. He was asked to hand in his paper. B. He didn’t hand in his paper on time.
C. He handed in his paper earlier. D. The teacher liked his paper very much.
单项选择题
When I got to the company, the meeting ______ for five minutes.
A. had begun

B. has been on
C. has begun

D. had been on
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