问题
We usually play sports _______three hours every day.
A:for
B:in
C:of
D:at
B:in
C:of
D:at
正确答案是：
同类题型
I have lost one of my gloves I _____ itsomewhere
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If you can’t find the place, I will show you _______.
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Look out! Don’t get close to the house________the roof is under repair