把句子变为被动语态：They are serving breakfast between six and nine o'clock.

把句子变为被动语态：They are serving breakfast between six and nine o'clock. 求英语解答：把下列句子变为被动语态 把下面句子变为被动语态.6---9 语态的转化将下列句子由主动语态变为被动语态或由被动语态变为主动语态1.We will finish the job before November .2.All the students are helping Grandma Li now.3.They are going to solve this problem these days.4.The bridge 把句子改为被动语态 把下列英语句子变为被动语态1、Where did they grow vegetables?2、We must keep the noise under 50 dbs(分贝) here. they are writing a composition 被动语态 把下面句子变为被动语态I will send a message immediately 把句子变为被动语态 My mother often tells me to be careful. 把句子变为被动语态：Mother often tells her children a story at bed time. 把下列句子变为被动语态 The policeman was questioning the thieves at this time yesterday. 把句子变为被动语态：Did you finish your composition this morning. They use metal for making machines(变为被动语态） They should study English hard.变为被动语态 They will see you tomorrow.变为被动语态 They must tell him everything.变为被动语态 They gave the children many good books.变为被动语态? 变为被动语态