Стр.39 Unit 4 ГДЗ Вербицкая Forward 11 класс

4. Think Back! Look at the underlined verb forms in Exercise 1 and in the article, and put them in the correct places in the table.

   obligation/necessity	must
   no obligation/necessity
   prohibition
   possibility/probability
   duty and advice	ought to
   ability or lack of ability
   permission

5. In pairs, discuss which three answers are possible in the sentences. How does the meaning change?

   1. I … do that now. I’ll do it tomorrow.
      a) needn’t
      b) can’t
      c) might
      d) don’t need to
   2. You _ borrow my car because you don’t have a licence.
      a) won’t be able to
      b) don’t have to
      c) mustn’t
      d) can’t
   3. He _ speak English until we came to London.
      a) didn’t need to
      b) couldn’t
      c) wasn’t able to
      d) needn’t
   4. You … arrive on time next Monday, or you’ll get the sack.
      a) must
      b) will have to
      c) can’t
      d) need to
   5. There … be life on other planets.
      a) can
      b) might
      c) could
      d) might not
   6. If we finish work early tonight, we … go for a meal.
      a) could
      b) can’t
      c) might
      d) can
   7. A vegetarian diet _ be a good idea.
      a) can
      b) can’t
      c) might
      d) might not
   8. Yoga _ make you feel great.
      a) must
      b) can
      c) need to
      d) may

Work it out

6. Compare these sentences with their equivalents in the article. Then put the underlined phrases in the correct places in the table in Exercise 4.

   1. They are supposed to be free. (para. D)
   2. They are obliged to run around a specified area. (para. C)
   3. Ordinary people can’t treat animals badly, but scientists are permitted to. (para. D)
   4. He managed to return on foot two days later. (para. B)
   5. They are bound to get better at it in future. (para. C)
   6. They were so important that UK citizens were forbidden to shoot them. (para. B)
   7. Another pigeon was required to wear a camera around its neck. (para. B)
   8. Russia is likely to start using dolphins to protect the Crimea coastline. (para. A)