( ) 16.The windows of the classroom _________.A.is locked B.be locked C.locked D.are locked

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()16.Thewindowsoftheclassroom_________.A.islockedB.belockedC.lockedD.arelocked()16.Thewindowsofthecl

( ) 16.The windows of the classroom _________.A.is locked B.be locked C.locked D.are locked
( ) 16.The windows of the classroom _________.
A.is locked B.be locked C.locked D.are locked

( ) 16.The windows of the classroom _________.A.is locked B.be locked C.locked D.are locked
不好意思跟楼上有不同意见,选D
lock用于不及物多指“卡住了”,例如:
及物动词 vt.& 不及物动词 vi.
1.锁住,锁上
The safe locks easily.
这保险柜容易锁.
Lock the door when you leave.
你离开时把门锁上.
不及物动词 vi.
1.(使)固定,卡住,塞住
I can't control the car,the wheels have locked.
我无法操纵这辆汽车,车轮卡住了.
及物动词 vt.
1.陷入,卷入(困境、争论、争执等)
2.被紧紧抓住(或抱住)
3.把…锁起来
再举个相似的例子:
To their dismay,the door was locked.
使他们惊慌的是,门已被锁上了.