The problem was very difficult to handle．We worked it out，__________ ．A．tooB．yet_刷题宝

题干

The problem was very difficult to handle．We worked it out，__________ ．

A．too

B．yet

C．although

D．though

上一题下一题 0.65难度单项选择更新时间:2014-04-23 06:01:37

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