We often sing an English song before ( )class A.a B.an C.the

问题描述:

We often sing an English song before ( )class A.a B.an C.the D/
1个回答 分类:英语 2014-12-05

问题解答:

我来补答
因为前面有often 所以class是一种泛指.
所以选D
 
 
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