题目内容
18、______ your letter, I would have written back two days ago.
A．If I received B．Should I received
C．Had I received D．If I could have received
试题答案
18、C
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______ your letter, I would have written back two days ago.
A．If I received B．Should I received
C．Had I received D．If I could have received
查看习题详情和答案>>______ your letter, I would have written back two days ago.
A．If I received B．Should I received
C．Had I received D．If I could have received
查看习题详情和答案>>