Question

Bicyclists........remember to signal when they turn. (Choose the correct option)

• A. musn’t
• B. has to
• C. had to do
• D. must

Hint:

Use “must” to express strong obligation or necessity. Example: “You must wear a helmet while riding a bike.”

Answer 1

The Correct Option is D

Step 1: Understanding the sentence context.
The sentence gives an instruction or rule that bicyclists are required to follow. When expressing necessity or obligation, the modal verb “must” is used.
Step 2: Analyze the options.
- (a) musn’t: Means prohibition — “must not” — incorrect because the sentence is about obligation, not restriction.
- (b) has to: Grammatically correct but used with singular subjects; here, “bicyclists” is plural.
- (c) had to do: Refers to past obligation — incorrect since the sentence is in present tense.
- (d) must: Correct; expresses present necessity or duty for all bicyclists.
Step 3: Constructing the correct sentence.
“Bicyclists must remember to signal when they turn.”
Step 4: Conclusion.
Thus, the correct modal verb indicating necessity is “must.”