一道英语语法题求详解。
IftheUnitedStateshadbuiltmorehomesforpoorpeoplein1955,thehousingproblemsnowinsomepart...
If the United States had built more homes for poor people in 1955, the housing problems now in some parts of the country__ so serious.
A . wouldn't be
B . wouldn't have been
C . will not be
D . would have not been
为什么答案是A?B哪里不对了?前面有had done 所以后面用would+V.原形吗? 展开
A . wouldn't be
B . wouldn't have been
C . will not be
D . would have not been
为什么答案是A?B哪里不对了?前面有had done 所以后面用would+V.原形吗? 展开
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