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
【正确答案】
B
【答案解析】
解析：根据句子后面的时间状语in the past few years可以知道句子应该使用现在完成时；另外生活水平提高，应该用被动语态。
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