keep在这句中有么有被动语态 All the computers must_______（keep）clean and tidy.

keep在这句中有么有被动语态 All the computers must_______（keep）clean and tidy. keep有没有被动语态 被动语态讲解We always keep the classroom clean.改成被动语态? we must keep our classroom clean改被动语态 We should keep our room clean 改被动语态 初中英语变为被动语态we must keep our classroom clean I always keep my room clean.变被动语态 keep是系动词为什么还能用被动语态? How did you keep your classroom clean?变为被动语态. We keep food cold in fridge.(改为被动语态） It's well-known to all that...请问这句是系表结构还是被动语态?　TO　ALL在句中做什么成分?为什么? produce teach publish keep主动语态和被动语态各两个造句 被动语态 被动语态 被动语态 被动语态 被动语态 keep sb doing sth 可用被动语态吗?比如keep the company being well operated?