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用适当的疑问词填空,1.()haveyoubeenskating?forfivehours2.()didyouskate?fivehoursago3.()doyougoshopping?onceaweek

题目详情
用适当的疑问词填空,
1.( )have you been skating?for five hours
2.( )did you skate?five hours ago
3.( )do you go shopping?once a week
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答案和解析
how long
when
how often
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