Bài 3: Gạch chân lỗi sai trong câu và viết lại câu đúng.
1. Studies more or you won't pass the test. 
2. Exercise less during daytime and you will have a decent night sleep.
3. Read less books and you can learn new things.
4. Don't drink less beer or you will have a big belly.
5. Don't smoke more and you will have poor health condition.
6. Talk more and keep quiet. I need to concentrate on my homework.