登录
一、用方框中所给词的适当形式完成句子。
1.All the children are often warned not ______________alone in the river.
2.It's impolite to______________when we are queuing up to buy train tickets.
3.−Can you give me some advice on improving my test scores?
−−Yes.____________,you can't play games every night.
4.The boy found the wounded soldier ______________while playing in the park.
1.All the children are often warned not ______________alone in the river.
2.It's impolite to______________when we are queuing up to buy train tickets.
3.−Can you give me some advice on improving my test scores?
−−Yes.____________,you can't play games every night.
4.The boy found the wounded soldier ______________while playing in the park.
答案
一、1. to swim 2. cut in 3. Above all 4. by accident
