Modals of deduction Exercises: 12 Questions with Answers

Question 1

The office is dark and the door is locked; everyone ___ home.

Accepted Answer

must have gone

Answer

must go

Answer

must going

Question 2

Choose the correct present deduction.

Accepted Answer

That can't be true.

Answer

That mustn't be true.

Answer

That don't must be true.

Question 3

The lights are still on, so the cleaners ___ finished yet.

Accepted Answer

can't have

Answer

mustn't have

Answer

shouldn't have

Question 4

Which sentence expresses criticism of a past decision, rather than a pure deduction?

Accepted Answer

He shouldn't have missed the deadline.

Answer

He must have missed the deadline.

Answer

He might have missed the deadline.

Modals of deduction exercises