Complete the sentences with modal verbs must, mustn’t, may, can, can’t ,should, shouldn’t :
1. Ann's husband ___ play football, tennis but he ___ not cook or iron.
2. ___ I ask you a question? – Yes, certainly.
3. You _____ put so much sugar in your tea.
4. I _____ski when I was a child, because I lived in Africa.
5. You _______ talk aloud in the library.
6. Students ______ practice their reading every day.
7. You __ be more attentive next time.