The students were surprised by the sudden _____ of the teacher.

选C
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the sudden enterance 是构成了名词性的词组，比如ten day's travel 十天的旅行

不过对于entry不常用，而且好像是和
that country's entry into the European Common Market.
他支持那个国家加入欧洲共同体。
有关
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例句Her father made a sudden entrance . 她父亲突然进来了。
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15 . entrance 入口；入场；进入 ( 名词 )
This is the entrance to the cinema . 这是电影院的入口。
He passed the entrance examination for college . 他通过了大学的入学考试。
Her father made a sudden entrance . 她父亲突然进来了。
〔点拨〕entrance 后常接 to 表示“……的入口”。其动词为 enter .
16 . exit 出口；太平门
There is another exit in the building . 这栋建筑还有另外一个出口。

A

D

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