Students who wish to participate in the exchange program must _______ their applications by March 15.
10
readingWhich choice completes the text so that it conforms to the conventions of Standard English?
A
submitting
B
submit
C
submitted
D
to submit
Correct Answer: B
Choice B is the best answer. This question tests verb form after modal verbs.
- Context clues: "Must" is a modal verb.
- Meaning: Modal verbs (must, can, should, will) are followed by the base form of the verb.
- Verify: "must submit" correctly uses the base form after the modal.
💡 Strategy: Modal verbs are always followed by the base form of the verb (no -ing, -ed, or "to").
Choice A is incorrect because modals don't take -ing forms. Choice C is incorrect because modals don't take past tense. Choice D is incorrect because modals don't take infinitives with "to."