Question

In which sentence is the word sleeping a gerund?

A. My cat's favorite pastime seems to be sleeping.
B. If we make too much noise, we'll wake the sleeping baby.
C. We were sleeping peacefully in the tent when the owl's sounds frightened us.

Answer 1

The correct answer to the previous question is "C". According to English Grammar, whenever using the Past Continuous Tense, also known as Past Progressive, we must comply with the following grammatical structure: past tense of to be (was or were) followed by the gerund of the main verb (e.g. to sleep, sleeping).

Answer 2

The correct answer is A. My cat's favorite pastime seems to be sleeping.

That is because in this case the gerund sleeping works as a noun, functioning as an object.