问题
选择题
Mike is good at playing basketball ______Bruce does well in football .
A．when
B．until
C．since
D．while
答案
答案：D
题目分析：句意：迈克擅长打篮球，而布鲁斯擅长足球。When当……时；until直到；since自从；while当……时，与……同时。所以选D。
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