1 . It is strongly advised that the content of your essay _________ _________ __________ (与……有关) the theme. (根据汉语提示完成句子)
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2010·陕西·模拟预测
2 . It is requested that each of the teachers invited ______ a performance at the party.
A.should give | B.will give | C.has to give | D.must give |
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