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they hadn't sailed for long.they hadn't sailed for long____ a violent storm started,A after B.since C.when D.while为什么不是B呢.
题目详情
they hadn't sailed for long.
they hadn't sailed for long____ a violent storm started,
A after B.since C.when D.while
为什么不是B呢.
they hadn't sailed for long____ a violent storm started,
A after B.since C.when D.while
为什么不是B呢.
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答案和解析
选择C是正确的,过去完成时指的是过去的过去.如果你选B的话They hadn't sailed for long 就应该改为They hasn't sailed for long（现在完成时态）
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