问题

________ did your uncle leave his home town?.— Let me see. He _______ for nearly twenty years.
A:When; has left
B:When; has been away
C:How long; has left
D:How long; has been away
B:When; has been away
C:How long; has left
D:How long; has been away
正确答案是:
同类题型
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I wonder if it is going to rain this Sunday.-If it _______ ,I’Il have to stay at home.[ ]
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