TESTNINE 17.by the end of next month,the bridge

题目

TESTNINE 17.by the end of next month,the bridge
A)will be built
B)has been built
C)will have been built
D)is to be built

答案

根据BY……MONTH‘ 到下个月末’ 可知动词还没发生, 排除B, 而by 到……为止,一般与完成时连用,即一般将来时的完成时态‘ 到下个月末, 这座桥就要建好了.所以答案是C
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