He is ill. He has kept_____.A．coughing all alongB．to cough at nightC．cough since

题干

He is ill. He has kept_____.

A．coughing all along	B．to cough at night
C．cough since yesterday	D．being coughed day and night

上一题下一题 0.64难度单项选择更新时间:2010-06-18 10:17:20

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