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They have been at this school for one and a half years. (对加粗部分提问)
________ ________ ________ they been at this school?
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How, long, have |
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题目内容
句形转换
They have been at this school for one and a half years. (对加粗部分提问)
________ ________ ________ they been at this school?
|
How, long, have |