题目内容
句型转换
Peter joined the singing group 2 months ago.
（改为同义句）Peter ______ ______ in the singing group for 2 months.
答案：has;been
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句型转换
Peter joined the singing group 2 months ago.
（改为同义句）Peter ______ ______ in the singing group for 2 months.
阅读快车系列答案