A-A+
He didn't look well for he ______ for sixteen
问题详情
He didn"t look well, for he ______ for sixteen hours.
A．had worked
B．would have worked
C．was working
D．had been working请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：D
解析：动词work是在didn'tlookwell前，故用过去完成进行时。
考点：
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