Page 152 exercise 1

1. Cannot
2. Should
3. Must
4. May
5. Must
6. Cannot
7. Should
8. Need to
9. Would
10. Do not have to
11. Can
12. Must not
13. Is possible to
14. Would

Page 153 exercise 2

1. She should revise more.
2. He must have had an accident.
3. He cannot see the no-smoking sign.
4. They might won the lottery.
5. He should left the house earlier.
6. He must fall in the river.
7. He should wear a coat.

Page 154 exercise 3

1. Tom: Can you play a musical instrument?

Louisa: Yes, I can – the piano.

2. Rick: How was the exam?

Will: It was OK. But I couldn't answer question 3.

3. Elena: Would you like some more coffee?

Matteo: No, thanks. But could I have a glass of water?

4. Julia: Can you smoke in public buildings in Italy?

Sandro: No, you cannot. But you could until 2005.

5. David: You must not tell Fiona about the party. It is a surprise.

Bella: OK, I will not say anything to her.

6. Luke: Sorry I am late. I cannot stop at the ATM on the way here.

Josh: No problem. But we really should leave now or we'll be late.

7. Wilma: You have not eaten since breakfast. You should be hungry.

Jake: I am. Could I possibly have a sandwich or something?

8. Alice: What is the matter?

Erica: I cannot find my door key. Have you seen it?

Alice: No, I have not. When did you last have it?

Erica: Well, it must be in the house somewhere. I used it to get in just five minutes ago, but I cannot remember where I put it.

Alice: Well, it could still be in the door. Have you checked?

9. Helen: Hi, Sam. I am afraid we could be a little late. The taxi has not arrived.

Sam: No problem. I can pick you up, if you like. I am sure I can borrow my dad's car. Go back to your house and I should be there in about twenty minutes.

Page 154 exercise 4

1. Couldn’t believe
2. Must have been
3. Shouldn’t have published
4. Weren’t able to open
5. Must have realized
6. Might be

Page 155 exercise 6

1. Non riesco a trovare il mio cellulare.

I cannot find my mobile phone.

2. Siete autorizzati a indossare gioielli a scuola?

Can you wear jewels at school?

3. Non puoi fumare qui.

You musn't smoke here.

4. Se non ti piace la pasta, non la devi mangiare.

If you do not like pasta, you need not to have it.

5. L'esame inizia alle 9:30. Devi essere qui per le 9:15.

The exam starts at nine o' clock. You must be here at 9:15.

6. L' autobus parte alle 5:15. Non devi arrivare tardi.

The bus leaves at 5:15. You must not arrive late.

7. Abbiamo perso l’autobus, ma siamo stati in grado di prendere un taxi.

We lost the bus, but we were able to catch a taxi.

8. Ho comprato la gonna che ho visto in vetrina. Non ho potuto farne a meno.

I have bought the skirt I had seen in the shop window. I could not help.