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题目内容
（专升本英语）
.If they
earlier than expected,they
here now.
A.had started,would be
B.started,might be
C.had started,would have been
D.will start.,might have been
earlier than expected,they
here now.
A.had started,would be
B.started,might be
C.had started,would have been
D.will start.,might have been
参考答案