--Jack had prepared for the game for such a long time. We all thought he it. What a pi

--Jack had prepared for the game for such a long time. We all thought he it.
-- What a pity! He too nervous when playing it.
A. would have won；had been
B. could have won；must be
C. could have won；was
D. would have won；has been

A. would have won；had beenB. could have won；must be(答案→)C. could have won；wasD. would have won；has been解析：考查情态动词的用法：句意：--杰克为比赛准备这么长时间了。我们都认为他会通过的。--真遗憾，比赛的时候，他一定是太紧张了。第一空填could have done表示过去可能做，第二空must be是肯定推测，选C。

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