Choose and write.
must(x2) mustn't can can't(x2) couldn't could
1. Leslie ....... read when she was four.
2. You ....... make noise. Your dad is sleeping!
3. Kikki ....... carry this bag. It's very heavy.
4. We ....... tidy our room. Aunt Agatha is coming.
5. I had a headache last night! I..... do my homework.
6. She has got a fantastic voice. She ..... sing very well.
7. I ....... help you. I'm very busy.
Answers & Comments
2. mustn't
3. can't
4. must
5. couldn't
6. can
7. can't