Modal Verbs of Deduction and Speculation Quiz

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John and Steven are running to their next class.

A. They might be late.

B. They might late.

Sandra isn’t at drama club today.

A. She might be ill.

B. She can’t be ill.

Can you see that bright light in the sky?

A. It could a spaceship.

B. It could be a spaceship.

My friend always passes his exams at school.

A. He may study very hard.

B. He must study very hard.

Hey! Look out the window, everyone. It’s snowing!

A. It can’t be snowing! It’s August!

B. It mustn’t be snowing! It’s August!

What’s the capital city of the United States?

A. I don’t know but it mustn’t be New York

B. I don’t know but it can’t be New York.

I can’t find my glasses. I definitely had them on the bus.

A. I can’t have left them at home.

B. I can’t leave them at home.

My cousin just went shopping and bought lots of clothes.

A. She must have lots of money.

B. She might have lots of money.

Susan is telling everyone the password.

A. It mustn’t be a secret.

B. It mustn’t a secret.

Dima isn’t at home, he always plays tennis on Friday.

A. He can’t be at the sports centre now.

B. He must be at the sports centre now.

My classmate can play basketball.

A. He must practice every day.

B. He must be practice every day.

My uncle is very strong. He can lift 300 kilograms!

A. He could exercise a lot.

B. He must exercise a lot.

Clara looks happy!

A. She must have passed her exams.

B. She must pass her exams.

There’s someone studying at the library.

A. It can be David. I think he’s at home.

B. It can’t be David. I think he’s at home.

My classmate is raising her hand.

A. She must know the answer.

B. She must have known the answer.