题目内容

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1. It is necessary                (sit) down to have a rest.
2. If he____(be)to come, what should we say to him?
3. These water cups         ____(make) of paper.
4. Their medical team(医疗队)         ____(make) up of doctors ,nurses and other skilled members.
5. There would no longer   ____(be) lives if there       ( be) no water on earth.
1. to sit  2. were  3. are made  4. is made  5. be; were
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