语法与词汇
11.
By the end of this year Mr. Smith______in our company for exactly three years.
A、
is working
B、
has worked
C、
will work
D、
will have worked
【正确答案】
D
【答案解析】
by the end of…year/day这种,一般与过去完成时或将来完成时连用。根据句意“到今年年末整满3年”,应该用将来完成时。
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