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There ____ great changes in such kind of computers in the la

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There ____ great changes in such kind of computers in the last few year.
Ais Bare Cwill be Dhave been
答案是D,请问为什么不选C.
There ____ great changes in such kind of computers in the la
答案为D
1)in the last few year.在过去的几年里,即:从现在算起之前的几年.
last 之前的,过去的
这个时间状语与现在完成时态连用,
与over the last few years一样
2)选C的话要与将来的时间连用,比如,in the coming year :在即将到来的一年里