happen的过去完成时 被动语态 直接间接引语 10
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1. happen不可以用于被动语态,happen一般用作不及物动词,而只有及物动词才有被动语态,所以happen不用于被动语态。
2. 直接引语:He said, "What happened yesterday?"
间接引语,用过去完成时:He asked (me) what had happened the day before?
2. 直接引语:He said, "What happened yesterday?"
间接引语,用过去完成时:He asked (me) what had happened the day before?
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