问题
选择题
They had an accident on the road and didn’t ________ at their hotel until after midnight.
A．check out
B．check in
C．check on
D．check over
答案
答案：B
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They had an accident on the road and didn’t ________ at their hotel until after midnight.
A．check out
B．check in
C．check on
D．check over
答案：B