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The salesgirl a mistake.选项有 can make may make must make must

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/08/28 11:30:03
The salesgirl a mistake.选项有 can make may make must make must have made
应选must have made,句意是,那个销售员一定犯了个错.
再问: 可是salesgirl是单数 不应该是has吗?
再答: must 后面要加动词原形