Question

Change the underlined part of the sentence, if necessary:
(if there isn't any improvement necessary, then choose option D)
It began to rain heavily just when I prepare to go out.

• A. Prepared
• B. Was preparing
• C. Have prepared
• D. No Improvement

Answer 1

The correct option is A Prepared

The words "began to rain" suggest that the sentence is in simple past tense. Option D: The underlined verb 'prepare' is in the present tense. The tense of a sentence must be consistent (there are exceptions, like conditional sentences and indirect speech). Hence it must be changed and option D is incorrect.
Option A: 'Prepared' is a past participle and is used in simple past tense sentences. Hence A is the correct option.
Option B: 'Was preparing' expresses past continuous tense, where the action is continuing at a particular time in the past. But, the given sentence is in simple past tense. Hence B is incorrect.
Option C: 'Have prepared' expresses the present perfect tense, where the action begins in the past and is completed in the present or just before the present. It doesn't agree to the sentence, hence C is also incorrect.