Which form of the modifier best completes the sentence?

Of the twins, Jeff is the __________ listener.

A.bestest

B.better

C.best

D.more better
This would be B. In this sense, you're comparing both twins so he would be the "better" listener, as opposed to the "best".

2. C
3. C
4. A
I think those two are right because apostrophes show possession...
5. A
6. D
7. B
8. B
9. B
10. D