______ the task is difficult, they managed to complete it on time.A．BecauseB．Th_刷题宝

题干

______ the task is difficult, they managed to complete it on time.

A．Because

B．Therefore

C．As

D．Though

上一题下一题 0.85难度单项选择更新时间:2011-12-21 07:07:46

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