问题
填空题
填空
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.
答案
1. to sit 2. were 3. are made 4. is made 5. be; were
