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Look! Mary doing homework.A. is; one's B. is; her C. are; his

编辑:chaxungu时间:2026-04-11 01:02:01分类:小学英语题库

【题目】Look! Mary____ doing ____homework.

A. is; one's B. is; her C. are; his

【答案】B

【解析】现在进行时态构成be doing.