One of the twins is watching TV while _____ is listening to music.

问题描述:

One of the twins is watching TV while _____ is listening to music.
A. other
B. the other
C. others
D. another

选 B.the other
其中一个双胞胎在看电视而另一个在听音乐.
one.the other.
一个.另一个.
是固定用法
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