单句改错,下面句子各有一处错误请找出并改正

单句改错,下面句子各有一处错误请找出并改正
last month,they might stay at home
there may have some students playing in the class room
you needn't to sit here
英语人气:349 ℃时间:2020-02-05 06:26:24
优质解答
last month,they might stay at home      stay-be
there may have some students playing in the class room have-be
you needn't to sit here 去年to
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