请问一句英语 虚拟的用法
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请问一句英语 虚拟的用法
The entire building may have been destroyed by the fire ____ the fire department not responded so quickly.
(A) if
(B) had
答案是B,为什么不选A,而选B呢?谢谢!
The entire building may have been destroyed by the fire ____ the fire department not responded so quickly.
(A) if
(B) had
答案是B,为什么不选A,而选B呢?谢谢!
![请问一句英语 虚拟的用法](/uploads/image/z/1155188-20-8.jpg?t=%E8%AF%B7%E9%97%AE%E4%B8%80%E5%8F%A5%E8%8B%B1%E8%AF%AD+%E8%99%9A%E6%8B%9F%E7%9A%84%E7%94%A8%E6%B3%95)
如果选IF
后面从句就不应该用NOT.而应该用didn't
选had是因为后面其实是倒装句.the fire department (had) not responded so quickly.
后面从句就不应该用NOT.而应该用didn't
选had是因为后面其实是倒装句.the fire department (had) not responded so quickly.