by after active sentences

[atabitaraf]

We ……………….. by a loud noise during the night.
A. woke up B. are woken up C. were woken up D. were waking up

Can't we use the preposition 'by' in active sentences?

[emsr2d2]

We ……………….. by a loud noise during the night.
A. woke up B. are woken up C. were woken up D. were waking up

Can't we use the preposition 'by' after active sentences?

I don't really understand your point. The example doesn't use the word "by" after a sentence, it uses it as part of a sentence. Why do you think you can't use "by"?

For info, there are potentially two correct answers to the test question.

[atabitaraf]

I don't really understand your point. The example doesn't use the word "by" after a sentence, it uses it as part of a sentence. Why do you think you can't use "by"?

For info, there are potentially two correct answers to the test question.

Yes, I corrected my question: Can't we use the preposition 'by' in active sentences?
The option says 'woke up' does not make a sense to me.

[5jj]

The option says 'woke up' does not make a sense to me.

That's perhaps because it's wrong. In multiple choice questions all but one of the options are usually wrong.

[bhaisahab]

Yes, I corrected my question: Can't we use the preposition 'by' in active sentences?
The option says 'woke up' does not make a sense to me.

As emsr2d2 said there are two possible correct answers, but "woke up" is incorrect.

[Barb_D]

The correct formation of the sentence is passive, not active.
Loud noises wake us up. Loud noises woke us up. - active
We are awoken by loud noises. We were awoken by loud noises. - passive