题目内容
根据句意,用所给动词的适当形式填空。
86. ---The prices are becoming too high.
---Yes, I think so. Something must_________ to control the prices. (do)
87. When I was young, my grandfather told me that the sun________(rise) in the east.
88. I don’t like the boy because he keeps_________ in class. (talk)
89. We are told___________(not laugh) at those in trouble.
90. My brother ____________( be ) away for three months. He will be back in a week.
86. be done 87. rises 88. talking 89. not to laugh 90. has been
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