问题
They ______ Hong Kong twice.
A:have gone to
B:have been to
C:have been in
D:have gone in
B:have been to
C:have been in
D:have gone in
正确答案是：
同类题型
Must I finish my homework at school?— No, you_____. you can do it at home
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While watching television, _______________________.
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