Modals of Deduction Quiz

What does "must" indicate when used for deduction?

• Uncertainty

• Strong evidence for truth

• Possibility with no evidence

• Strong evidence against truth

When should you use "may/might/could" in a deduction?

• When there is strong evidence against it

• When there is strong evidence for it

• When there is not enough evidence to be certain

• When something is proven false

What does "can't" suggest in a deduction?

• Possibility

• Strong evidence against it

• Strong evidence for it

• Uncertainty

Which modal is used when you are very sure something is true due to strong evidence?

• Might

• Must

• Could

• May

Which of these modals indicates a possibility with insufficient evidence?

• Can't

• Must

• Might

• All of the above

Which sentence uses "may" correctly for deduction?

• She may be late because the bus is on time

• She may be late because there’s a traffic jam

• She may not be late because she’s here

• She may be late because it’s impossible

When would you use "can't" in a deduction?

• When there’s strong evidence for it

• When there’s strong evidence against it

• When there’s no evidence

• When it’s a possibility

What does the sentence "That story can’t be true" imply?

• There’s strong evidence for it

• There’s strong evidence against it

• It’s a possibility

• There’s no evidence

Which modal shows the highest level of certainty?

• Could

• Might

• Must

• May

In the sentence "The author is well-known, so the story ___ be true," which modal fits?

• can't

• might

• must

• could