They were asked to clean the classroom yesterday. This kind

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They were asked to clean the classroom yesterday. This kind of bike is made in Tianjin.
这两句怎么翻译,主动句都是什么?

昨天他们被要求打扫教室
这辆自行车是在天津制造的
主动句是Someone asked them to clean the classroom yesterday
Someone makes this kind of bike in Tianjin
再问：为什么是makes
再答：像someone/somebody/everyone/everybody/something/anything等不定代词作主语，谓语动词要用三单形式 O(∩_∩)O~

They were asked to clean the classroom yesterday. This kind they were clean the classroom yesterday哪错了,为什么.主要要原因! they didn't clean the classroom yesterday.the classroom ___ they (ask) us to clean the classroom yesterday.would you lik We asked them ___(clean) the classroom yesterday. It's a ___ We were made to clean the classroom中to可省吗?clean the classroo they have to(clean the classroom对括号里提问 They take (turn) to clean the classroom every day. who ( )to clean the classroom() afternoon?A,would like ;this ______ she going to clean the classroom this afternoon _____ They were listening to the radio at this time yesterday."(一般 the classroom weren't clean yesterday找错