Must / Can't para Dedução Lógica

Must / Can't para Dedução Lógica — Exercise 3

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Must / Can't para Dedução Lógica — Exercise 3

Practice English grammar topic Must / Can't para Dedução Lógica with 10 multiple-choice questions. Answer at least 70% correctly to complete the test.

Use must e can't para expressar dedução lógica — must para conclusões positivas quase certas e can't para conclusões negativas quase certas. Inclui deduções passadas com must have e can't have.

B2 · Intermédio Superior TOEIC 605–780 IELTS 5,5–6,5 Modalidade (Verbos Modais)
10 questions Nota mínima: 70% Test 3

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  1. 1

    That ______ be John over there. He told me he was going to be out of the country all week.

  2. 2

    The final report is full of complex scientific data and analysis. It ______ have been written by an expert in the field.

  3. 3

    The puzzle piece is a square, but the hole is a circle. It ______ fit.

  4. 4

    The philosophical argument contains a logical contradiction in its foundational premises. Therefore, the conclusion, regardless of how convincing it sounds, ______ be valid.

  5. 5

    He won the lottery. He ______ be thrilled!

  6. 6

    The archaeologist found Roman coins at a dig site in America. The coins ______ have been brought over much later.

  7. 7

    He has a garage full of tools and builds furniture for fun. He ______ be good with his hands.

  8. 8

    The recipe requires a cup of sugar, but I only have half a cup. I ______ be able to make the cake correctly.

  9. 9

    Given the half-life of the radioactive isotope is 100 years, and the sample is 300 years old, it ______ have one-eighth of its original radioactivity.

  10. 10

    A penguin is a bird, but it ______ fly.

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