GRAMMAR IN PROGRESS

ES N. 42 PAG. 239

1. Mustn’t
2. Didn’t you have to
3. Didn’t need to buy
4. Don’t need to
5. Could you
6. Didn’t need to send
7. Don’t have to
8. Couldn’t

ES N. 43 PAG. 239

1. c
2. G
3. H
4. B
5. i
6. f
7. E
8. A

ES N. 44 PAG. 239

1. Don’t have to
2. Must
3. Will have to
4. Have to
5. Mustn’t
6. Have to
7. Don’t have to
8. Must
9. Shall
10. Must

ES N. 45 PAG. 239

1. Your mum is not well. You must help her!
2. They are studying now! You don’t have to disturb them!
3. You don’t have to eat meet if you don’t like it.
4. I had a flat tyre, that’s why I had to change it.
5. I didn’t have to install the program in the new laptop.
6. During the industrial revolution a lot of children had to work in factories.
7. A: Silvia’s shop is having success.

B: Silvia must be satisfied.

8. A: What shoes should I wear for the party?

B: You must wear comfortable shoes to dance.

ES N. 46 PAG. 239

1. Perché per esprimere l’assenza di necessità si usa doesn’t/don’t have to nel presente e didn’t have to nel passato.
2. ?
3. In questo caso si esprime con didn’t need to.