The students can answer questions. They have to put up hands

The students can answer questions. They have to put up hands.(用before改写成简单句)
lsw211211 1年前 已收到1个回答 举报

wiwind 幼苗

共回答了18个问题采纳率:94.4% 举报

把before放在句首,Before the students can answer questions,they have to put up hands.

1年前

7
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