I would like to know if the the below marked answers are correct or not, Please help me in evaluating the answers.

1. The last time I ----- her was two months ago
A) Seeing B) See C) saw D) have seen
Answer : B
2. If we organize project teams, we can bring together people -------- have never worked with each other.
A) Which B)who C) whose D)whom
Answer: B
3. Elvis presley wasn’t the first rock-and-roll singer,------------he was the one who made it popular.
A) And B) In spite of C) but D) So
Answer : B
4. Party asked me where did you buy the blue sweater that I wore yesterday.
A) Asked me
B) Where
C) Did you buy
D) That I wore
Answer : D
5. -------I was trying to get a taxi, it started snowing and I got really cold.
A) While
B) During
C) At that time
D) Because
Answer : A
6. Although my department always submits it annual report by the end of the year, Some _______wait until the end of January
A) Has had to
B) Has had to
C) Have had to
D) Had to have
Answer : B
7. Are accounts receivable have to balance against assets and profits?
A) Are
B) Receivable
C) Balance
D) Assets
Answer: C
8. _______She was very sick Jennifer gave her presentation at the meeting.
A) However
B) Nevertheless
C) Even though
D) Despite
Answer : A
9. _____the storm, they were unable to attend the conference.
A) Although
B) As a result of
C) Event though
D) Because
Answer : B
10. She forgot buying a birthday present for her husband, so his feeling were hurt .
A) Buying
B) For
C) So
D) Were
Answer : A
11. She wishes that she has more time to study computer programming.
A) Wishes
B) That
C) Has
D) to study
Answer : D
12. A: Do you know which function pertains to the Bureau of Alcohol, Tobacco, and Firearms?
B: According to the presentation, the Bureau _____to monitor dangerous items in society.
A) Can Dictate
B) Is designated
C) Has allocated
D) Has designed
Answer : C
13. The head of the Purchasing Department told me send out this order as soon as I possibly could.
A) Purchasing
B) Told
C) Send out
D) As soon as
Answer : C
14. But, What if the design would have implicits detrimental overtones ?
A) What if
B) Implicits
C) Detrimental
D) Overtones
Answer : C
15. A: I am open for criticism from you regarding the company policy.
B:______,I would have to back you up all the way.
A) After you just pulled
B) Look at behind you
C) In terms of efficiency
D) The chip are up so
Answer : C