Multiple choice

Directions: Fill up the blank with the appropriate modal verb.

You are suffering from high fever. You _________ consult your doctor.

  1. could

  2. had to

  3. would have

  4. must
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is a case of advice (which needs to be accepted). Modal 'must' is the best usage here. 'Could' and 'had to' refer to past tense. 'Would have' takes the 'third form of the verb'.

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