Question

Fill in the blank with a modal that expresses ability:

He ______ lift that heavy box.

• A. Can
• B. Might
• C. Ought to
  
• D. Must

Answer 1

The correct option is A Can

As the question clearly states to use the modal that expresses ability,

Option A is the correct answer because 'can' expresses ability or capability to do something.

Option B is incorrect because 'might' is the past tense of may, and the statement is made in the present tense.

Option C and D are incorrect because 'ought to' and 'must' are used to express compulsion or the need to do something, but as the statement demands the expression of ability, they are incorrect.