Please correct my grammer question

1.We need to take some lessons because my client doesn't know how to golf and ___ I.

(A) so does
(B) neither do
(C) so do
(D) either do
ans (B) neither do

2.They ________ in the same department since 2002.

(A) have been
(B) has been
(C) has to be
(D) have to be

ans (A) have been

3.We need to consider ________ the terms of the contract.

(A) renegotiate
(B) to renegotiate
(C) renegotiating
(D) renegotiation

ans (C) renegotiating

4.A: So, what was your impression of the meeting?
B: Well, after some additional conversations with management, I was completely sold. I'm _______.

(A) afraid I can't give it my backing
(B) fully in favor
(C) opposed to the idea
(D) not surprised in the least

ans C) opposed to the idea