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1、The room ___________as a meeting room

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1、The room ___________as a meeting room
A.used to being used B.was used to being used
C.used to be used D.was used to be used
为什么B不对,be used to doing?
2、There are two books on the bookshelf.___of them____worth____
A Both are being read B All are reading C Nerther is being readD Either is reading
为什么worth后不能用被动?
1、The room ___________as a meeting room
1.C.used to be used 是对的
第一个used to是“过去常常”的意思,第二个be used是“被使用”的意思.be used to doing 是习惯做某事,不能用于物,只能用于人.
2,D Either is reading 是对的
sth be worth doing,是某物值得(被)做,用主动的形式表示被动的含义.