when does he clean the blackboard?he always cleans the blackbaord every day 这句为什么就不需要does

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when does he clean the blackboard?he always cleans the blackbaord every day 这句为什么就不需要does

when does he clean the blackboard?he always cleans the blackbaord every day 这句为什么就不需要does
when does he clean the blackboard?he always cleans the blackbaord every day 这句为什么就不需要does

when does he clean the blackboard?he always cleans the blackbaord every day 这句为什么就不需要does
因为does是助动词,出现在疑问句中或否定句中,这句是肯定句,而且 cleans 已经体现了第三人称单数的语法意义

因为he always cleans the blackbaord every day是陈述句,谓语动词是cleans ,故不用助动词does
如果这句变一般疑问句就要加does ,即 Does he always clean the blackboard every day ?

does只能出现在疑问句和否定句中,这句是肯定句

第一句话是疑问句,第二句话是陈述句,已有助动词cleans,故不需要助动词does,does在陈述句中是做肯定的意思,表示非常同意或者赞同,而此句话并没有那种意思,这只是说明一种现象和事实,所以不用does

翻译how does he learn when he doesn't understand when does he clean the blackboard?he always cleans the blackbaord every day 这句为什么就不需要does When does he get up? when does he have history? Tom is very good at school.So his teachers like him very much.But he is not clean.His face and hands often dirty.He doesn't like washing his hands and face.When his parents ask himto wash them.He wash them with water only.He does not like soap very m What does he do when he works He has ___the classroom when he is on duty.A clean B to clean Ccleaning D cleans—————she _____go to bed so early?A Does, have to B Has,has to 那这个呢 ( )he clean the rooms at home.( )里是填Does还是Is When he has something to talk about with his classmates ,he does't need to go out.翻译成汉语 when does he have his birthday( ) when does jim go fishing? he often------------------------------------- 1. I don’t know when ______ the dictionary.. A. did he know B. he borrowed C. he borrows D. does he borrow When did he clean the window?怎样改为被动语态 When did he clean his shoes?怎样回答 When does he does morning exercises 修改病句 l don't know ___ the day after tomorrow a,when dol don't know ___ the day after tomorrowa,when does he come b.how will he come c.if he comes d.whether he'll come what time does he get up?when does he get up?what time 和 when I don't know __ .A.where does he come from B.what is his name C.how old he is D.when will he leave选什么?