单选题In our company, great changes _____ since the new manager came.Atook placeBtake placeCwill have taken placeDhave taken place
单选题
In our company, great changes _____ since the new manager came.
A
took place
B
take place
C
will have taken place
D
have taken place
参考解析
解析：
句意：自从新经理来后，我们公司发生了很大的变化。时间标志since表明这里应该用现在完成时态，结构为have done。故D为正确答案。A项过去式，B项现在时，C项将来时都不符合。
句意：自从新经理来后，我们公司发生了很大的变化。时间标志since表明这里应该用现在完成时态，结构为have done。故D为正确答案。A项过去式，B项现在时，C项将来时都不符合。
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