一道英语选择题 23/4They ____ to enter the builing by the back door; however, the front door was locked.A. weren't supposedB. wouldn't supposedC. were supposedD. would be supposed请解释一下~谢谢大家!

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一道英语选择题 23/4They ____ to enter the builing by the back door; however, the front door was locked.A. weren't supposedB. wouldn't supposedC. were supposedD. would be supposed请解释一下~谢谢大家!

一道英语选择题 23/4They ____ to enter the builing by the back door; however, the front door was locked.A. weren't supposedB. wouldn't supposedC. were supposedD. would be supposed请解释一下~谢谢大家!
一道英语选择题 23/4
They ____ to enter the builing by the back door; however, the front door was locked.
A. weren't supposed
B. wouldn't supposed
C. were supposed
D. would be supposed
请解释一下~
谢谢大家!

一道英语选择题 23/4They ____ to enter the builing by the back door; however, the front door was locked.A. weren't supposedB. wouldn't supposedC. were supposedD. would be supposed请解释一下~谢谢大家!
A
意思是"他们本来不准备从后门进这栋楼,但是,前门锁上了."

a be supposed 意思是被要求如何,被动语态 根据意思为否定
他们本来不准备从后门进这栋楼,但是,前门锁上了."

选A
be supposed to do sth应该做某事
他们不应该走后门,然而,前门却也锁了.

A

D. be supposed to 应该(据说,被期望,获准)此题为被期望.
用would be supposed 表示对过去的虚拟.

选A
be supposed to do sth应该做某事
这句话的意思是:他们原本不应该从后门进这栋楼的,但是,前门被锁上了.

a
意思是他们本不打算走后门进入那幢楼的,可是前门已经上锁了.

选A
他们本不应该从后门进楼,但是前门被锁住了
这里不能选C,注意句中HOWEVER的转折