问题
选择题
I was out of town at the time, so I don’t know exactly how it _______.
A．was happening
B．happened
C．happens
D．has happened
答案
B
本题考查具体语境中的时态，后一句隐藏的时间状语是at the time.
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I was out of town at the time, so I don’t know exactly how it _______.
A．was happening
B．happened
C．happens
D．has happened
B
本题考查具体语境中的时态，后一句隐藏的时间状语是at the time.