Answer:
1. He gave me a chair to sit.
Finite Verb: Gave
2. I want to buy some clothes.
3. Barking dogs seldom bite.
4. He was wearing a torn shirt.
5. He had his shoes polished.
Explanation:
A finite verb is a verb that has tense in it. The tense could be present, past or future tense.
A non-finite verb is a verb that has no tense in it.
Broad, as there is a wide range of things to explore in the subject, so it is a large/ broad subject. Science for example has biology, chemistry, and physics under it, and many things under each of these subtopics, which is why, science is a broad topic/subject, whereas if you were to narrow it down to the atoms (Chemistry) it would be less broad. and more limited, any subject can be impressive, no matter how limited nor broad it is.