Стр.89 Unit 7 ГДЗ Комарова Ларионова 10 класс

Grammar 1: Modals

A. Choose the correct verb.

• He can’t / mustn’t take evening classes because he works in the evening.
• Science might / must be difficult because my brother takes hours to do his homework.
• You can study the next chapter if you want to, but you mustn’t / don’t have to do it.
• I think you should / have to take it easy and stop worrying so much about your marks.
• It says you need to / can be over 18 to take this course.
• It could / should be any of them.

B. Correct the mistakes in these sentences.

1. This sentence mustn’t be right. I’m sure there’s another way of saying it.
2. You don’t have to be late or you’ll miss the first period.
3. You mustn’t do it now. It can wait until later.
4. I can read when I was five.
5. He could be at home because I saw him go in five minutes ago.
6. I think you can study harder if you want to pass.

C. Complete the second sentence so that it means the same as the first. Use the word given.

• It’s a good idea to do your homework as soon as you come home. (should)
  I think your homework as soon as you come home.
• I’m sure this is right, because all the other answers are wrong. (must)
  This because all the other answers are wrong.
• It’s possible that I am wrong. (could)
• He advised me to study harder. (should)
  He told me that I harder.
• It isn’t necessary to do all the exercises now. (don’t)
  You do all the exercises now.
• You must answer all the questions. (leave)
  You any questions unanswered.
• Is Mr. Green your uncle? I’m sure you’re joking. (can)
  Mr. Green … uncle.