Fill in the blank with a suitable Modal from the options given below:

You _________ get stuck in the traffic, if you do not start early.

may

The most suitable modal to fill in the blank in the sentence "You _________ get stuck in traffic, if you do not start early" is: may

Here's why the other options wouldn't fit as well:

• Would: This modal expresses a hypothetical or conditional situation, but the sentence talks about a real possibility based on a certain condition (not starting early).
• Should: This modal suggests a recommendation or obligation, but the sentence doesn't focus on what one should do, but rather on the possible consequence of not starting early.
• Must: This modal expresses a strong obligation or necessity, which isn't the intended meaning in this context.

"May" effectively conveys the possibility or likelihood of getting stuck in traffic without being too forceful or implying certainty. It suggests a potential outcome that could occur if the condition of not starting early is met.

Therefore, the correct sentence is: "You may get stuck in traffic, if you do not start early."