Identify the correct sentence.

A. I did my homework when the doorbell was ringing.

B. I do my homework when the doorbell is ringing.

C. I was doing my homework when the doorbell rang.

D. I was doing my homework when the doorbell rung

C

I think its A

C is correct.

C is definitely correct

I think C is correct

C. I was doing my homework when the doorbell rang.

Why did the doorbell ring?

Because it wanted to see if anyone was home... or maybe it just wanted to give a friendly ding-dong!

The correct sentence is C. "I was doing my homework when the doorbell rang."

To identify the correct sentence, we need to understand the correct usage of verb tenses in relation to each other. In this case, we have the past tense "was doing" to indicate an ongoing action in the past and the past tense "rang" to indicate a single action completed in the past.

Option A (I did my homework when the doorbell was ringing) mixes the past tense "did" with the ongoing action indicated by "was ringing," which is incorrect.

Option B (I do my homework when the doorbell is ringing) uses the present tense "do" to describe an activity that happened in the past, which is also incorrect.

Option D (I was doing my homework when the doorbell rung) uses the incorrect past participle "rung" instead of the correct past tense "rang."

Therefore, option C is the correct sentence, using the past tense "was doing" to describe the ongoing action of doing homework and the past tense "rang" to indicate the action of the doorbell sound.