Question

Fill in the blank with a suitable verb:
You _________ come with me if you don't want to. I'll go on my own.

• A. don't have to
• B. must
• C. should
• D. shouldn't

Answer 1

The correct option is A don't have to

Answer : A

Let's take a look at the usage of the modal verbs in the options:

• don't have to : It is the negative form of 'have to'
  
• must : to express a necessity (in the present or future); to make an assumption that something is true
• should : It is used for expressing an opinion / advice / expectation / criticism about some past action or it can be used to ask for an advice
• shouldn't : It is the contracted form of 'should not'; it is the negative form of the modal verb 'should'

Here in the question, we see that the speaker is trying to express that the other person can come along if he/she wishes to. The speaker is not exerting an obligation but is expressing that it is NOT NECESSARY for the other person to come, but he/she can if she wishes to.

• As the speaker is NOT expressing a necessity here -- 'must' is not suitable here.
• As it is neither an opinion or idea -- 'should' is unsuitable here
• 'shouldn't' is not suitable here because the sentence is not a First Conditional Sentence.

Therefore from among the options, 'don't have to' is the most suitable verb to complete the sentence.

Thus, the correct complete sentence is:

You DON'T HAVE TO come with me if you don't want to. I'll go on my own.