Keys ( ) opening the lock in the door.
问题描述:
Keys ( ) opening the lock in the door.
Keys ( ) opening the lock in the door.
A.used for B.are used C.are used to D.are used for
我选的是C老师给大答案是D be used to doing不是被用来做某是吗,我查词典查不到be used for?
答
同学,为你
选择 D.are used for
知识点:
be used to doing 表示习惯于做某事
be used to do表示...被用来做某事
be used for doing 被用于做…
opening是ing形式的,因此选择be used for doing 被用于做…才是对的.好好看看区别.
例句:
be used to do--Knives are used to cut things.
be use for doing----Knives are used for cutting things
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