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We help our teacher the floor. ( )A.can; cleaningB.must; cleanedC.should; clean

编辑:chaxungu时间:2026-04-28 11:46:06分类:小学英语题库

【题目】We ______ help our teacher ______ the floor. ( )

A.can; cleaning

B.must; cleaned

C.should; clean

【答案】C

【解析】