Modals — Obligation and Advice

Grammar Reference

Modals — Obligation and Advice — Exercises

Choose the correct verb

Tap the correct option.

1. You need to / needn't finish your project, then you can go out.
   (need to / needn't) 
2. You have to / needn't tell the teacher today if you want to go on the school trip.
   (have to / needn't) 
3. You need to / should brush your teeth before you go to sleep.
   (should / need to) 
4. You don't have to / need to take the bus - I can give you a lift.
   (don't have to / need to) 
5. You needn't / shouldn't buy a ticket - I've already got one for you.
   (needn't / shouldn't) 
6. You should / needn't prepare your bag before you go to sleep.
   (should / needn't) 

Give advice using modals

Write advice using should, shouldn't, need to, or don't have to.

1. My dog won't stop barking.
   
2. I am always late for class.
   
3. I waste too much time watching TV.
   
4. I want to stop eating junk food.
   
5. I don't have any money.
   
6. I want to exercise but don't have enough time.
   

Modals — Obligation and Advice — Answer Key

Choose the correct verb

1. need to
2. have to
3. should
4. don't have to
5. needn't
6. should

Give advice using modals

1. Sample answer: You should take it to a dog trainer.
2. Sample answer: You should set an alarm earlier.
3. Sample answer: You shouldn't watch TV in the evenings.
4. Sample answer: You should cook at home more often.
5. Sample answer: You need to find a part-time job.
6. Sample answer: You don't have to go to the gym. Try walking or cycling.