问题
选择题
I didn’t see John yesterday. Do you know what _______________ him?
A．happened
B．happened to
C．did happen to
D．happens to
答案
答案：B
考查时态。昨天我没见到他，你知道他怎么了？过去的事情应用一般过去时态，同时“某人怎么了”用“happen to sb” 所以答案为B
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