题目内容
找出能替换画线部分的那一项
By the time she got to class, the teacher had already started teaching.
[ ]
A. Before
B. As soon as
C. When
D. While
答案:C
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题目内容
找出能替换画线部分的那一项
By the time she got to class, the teacher had already started teaching.
[ ]