这道题的解题过程是?根据括号中的提示将以
1个回答
1. Not only should we students study hard, but we should know how to enjoy ourselves in our spare time
as well.
2. You can never depend on his arriving on time, but in the meanwhile we can do nothing but wait.
3. It is a a knowledge of first aid that can make a real difference when someone is hurt.
4. You should cut off the electricity supply to prevent the fire from spreading.
5. He was very grateful to me for what I had done for him and treated me as his best friend.
答案不唯一
