Test 6: 'Should', 'shouldn't', 'could' and 'couldn't'

Choose the correct answer.

1. You ... should ask should to ask should asked before you take something that isn't yours.
2. Theo ... shoulds tidy should to tidy should tidy his room more often.
3. We're tired. ~ You ... should go should to go should gone to bed earlier.
4. Tina ... doesn't should shouldn't shouldn't to listen to her MP3 player all day.
5. We ... shouldn't don't should shouldn't to stay out too late.
6. You ... don't should do shouldn't do shouldn't to do your homework in front of the TV.
7. When I was five, I ... can could to could swim quite fast.
8. My teacher ... could coulds can speak Spanish when she was little.
9. Grandma and Grandpa ... could to walk could walked could walk for miles 20 years ago.
10. We ... not could didn't could couldn't do maths when we were three.
11. Ethan ... not coulds couldn't couldn't to find the tickets.
12. I'm really hungry. ~ You ... should could shouldn't eat something.
13. When she was ten, Bella ... should could shouldn't cook a meal.
14. Gary ... shouldn't could couldn't fly a kite when he was four, but he can now.
15. I haven't got any money. ~ You ... shouldn't couldn't should spend all your pocket money.