Hard _____ he tried, he failed to catch up with the first runner.A．althoughB．asC_刷题宝

题干

Hard _____ he tried, he failed to catch up with the first runner.

A．although

B．as

C．while

D．when

上一题下一题 0.64难度单项选择更新时间:2011-09-02 09:37:06

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