Please check my answer

Question

There was one student still taking the exam when the bell rang.

Student is the subject and exam is the simple subject.

Answer 1

You're half right.

Student is the simple subject. What was the student doing?

Answer 2

taking the exam

Answer 3

Yes. Which one of those is the verb?

Also note the helping verb.

https://www.englishclub.com/grammar/verbs-classification-helping.htm

Answer 4

there is the verb.
helping verb is was
am I close?

Answer 5

I don't see any action in helping. Plus I already told you that one of three words is the verb!

Yes, "was" is the helping verb.

Answer 6

Taking is the verb

Answer 7

Yes. The verb is WAS TAKING.

Answer 8

Ok I think I got it. The complete subject is taking the exam

Answer 9

Huh??????