Question

The Seagull thought that his wings ________ not support him.

• A. will
• B. shall
• C. must
• D. would

Hint:

When the main clause is in the past tense (e.g., \textbf{thought, said, believed}), the modal verb \textbf{will} usually changes to \textbf{would} in the subordinate clause.

Answer 1

The Correct Option is D

Step 1: Understanding the sentence structure.
The sentence is written in the past tense because it uses the word thought. When a sentence is reported in the past tense, the verb in the subordinate clause usually shifts to a past form as well.
Step 2: Identifying the correct modal verb.
Modal verbs such as will, shall, must, and would express different meanings. When the main clause is in the past tense, will generally changes to would to maintain proper tense agreement.
Step 3: Forming the correct sentence.
Thus, the grammatically correct sentence becomes: The Seagull thought that his wings would not support him.
Step 4: Analysis of options.

• (A) will: Incorrect. Will indicates future tense and does not agree with the past tense verb thought.
• (B) shall: Incorrect. Shall is generally used for suggestions or formal future statements and does not fit the context.
• (C) must: Incorrect. Must expresses obligation or necessity, which does not match the meaning of the sentence.
• (D) would: Correct. Would is the past form of will and fits correctly with the past tense verb thought.

Step 5: Conclusion.
Therefore, the correct modal verb that completes the sentence according to the rules of tense agreement is would.
Final Answer: would.