问题
选择题
The windows _______ after school is over.
A．usually close
B．usually closed
C．are usually closed
D．are usually closing
答案
答案：C
本题是个被动句，窗子只能是动作的承受者，用be +过去分词的结构，过去分词
通常加ed，故选C。
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The windows _______ after school is over.
A．usually close
B．usually closed
C．are usually closed
D．are usually closing
答案：C
本题是个被动句，窗子只能是动作的承受者，用be +过去分词的结构，过去分词
通常加ed，故选C。