1. you should go in for sports.
2. I need to go swimming to exercise my leg.
3. Children mustn't eat junk food.
4. you mustn't arrive late to school.
5. I think you should go to the doctor.
1. you should go in for sports.
2. I need to go swimming to exercise my leg.
3. Children mustn't eat junk food.
4. you mustn't arrive late to school.
5. I think you should go to the doctor.