Please correct my question 's answer

1.Did you know that Franz and Alex ___ together since last year?

(A) were working
(B) are working
(C) have been working
(D) worked

ans (D) worked

2.We have stand in line at the Shanghai exhibit
A B
for 45 minutes already .
C D

(A) have stand
(B) in
(C) for
(D) already

ans (A) have stand

3.Ayako asked me where I place the airlines ticket
A B C
that I purchased yesterday.
D

(A) asked me
(B) where
(C) I place
(D) that I purchased

ans (A) asked me

4.If we were acquired by Pacific 100, our Research and Development team __________ to the main office in Los Angeles.

(A) relocates
(B) would relocate
(C) was relocated
(D) will relocate

ans (D) will relocate

5.In deference to Xian's objection regarding the proposal that had been
A
submitted , the committee will have approved the measure had the majority not
B C
been swayed by the client's opinion.
D

(A) regarding
(B) submitted
(C) will
(D) been

ans (C) will

6.The director said that we might had to downsize the engineering team
A
by 20 percent if the negotiations had fallen
B C D
through.

(A) had
(B) by
(C) if
(D) had fallen

ans (A) had

7.We are currently in search of a new online marketing specialist
A B
who is effective highly in search engine optimization.
C D

(A) are currently
(B) of
(C) who is
(D) effective highly

ans (A) are currently

8.A: Has the 4:00 meeting been rescheduled?
B: Yes, I got the marketing managers ________ to meet tomorrow morning at 9:00 instead.

(A) agree
(B) agreeing
(C) to agree
(D) agreed

ans (C) to agree