题目内容

Look, Sally looks unhappy, what _____ the problem?


  1. A.
    seem to be
  2. B.
    seems to be
  3. C.
    seem that
B
这题考查情态动词seem的用法:seem to be“似乎是”,主语是problem,所以用seems,句意是:看Sally看上去不高兴,问题似乎是什么?
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