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МатематикаВопрос:
9. Robert ... have done his homework already, it's impossible.
Ответ:
9. Robert can't have done his homework already, it's impossible.
Роберт не мог уже сделать свою домашнюю работу, это невозможно. 'Can't have' выражает уверенность в том, что действие не могло произойти.
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- 5. Complete the sentences with the correct modal verb: might, need, must, mustn't, can't, could, should, needn't, don't have to, may. 1. Students ... do all their projects today, they can finish them tomorrow.
- 2. Jane is not answering my calls. She ... be sleeping.
- 3. "... you open the window, please?", she asked.
- 4. "... I go outside and read under a tree?", Mary asked.
- 5. I haven't seen Thomas today, he ... have been absent from school.
- 6. You ... respect your parents and obey them.
- 7. You ... talk during the lesson.
- 8. She ... have bought apples as I had already done it.
- 10. We ... to decide who will be responsible for the project.
