Question

You ____1___ have your hair cut very short in the first month,

• A. must
• B. can
• C. would
• D. could

Answer 1

Answer: (A)

The correct answer is option A because 'must'expresses compulsion or strong obligation which is true here because following the rule of short hair is a necessity.

Option B is incorrect because 'can' is used to express ability or to give to permission,which is not correct in this case as it is not a choice.

Option C is incorrect because 'would' is used in the future tense.

Option D is incorrect because 'could' is the past tense of can. It is used to talk about ability that existed in the past.