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You must when you cross the road. ( )A.be carefulB.be careC.to be careful

编辑:chaxungu时间:2026-04-28 11:46:10分类:小学英语题库

【题目】You must ______ when you cross the road. ( )

A.be careful

B.be care

C.to be careful

【答案】A

【解析】