correct sentence

If you choose the correct sentence from each question, which one would that be? I put my answer next to the #.

(1) C
a.It was surprised that the airport is located in the center of the city.
b.It was surprising that the airport is locating in the center of the city.
c.I was surprised that the airport is located in the center of the city.
d.I was surprising that the airport is locating in the center of the city.

(2) A
a.Ms. Kato didn’t choose any of the three blouses because she found none of them satisfactory.
b.Ms. Kato didn’t choose either of the three blouses because she found both of them unsatisfactory.
c.Ms. Kato chose none of the three blouses because she found neither of them satisfactory.
d.Ms. Kato chose neither of the three blouses because she found all of them unsatisfactory.

(3) C
a.Yesterday Kenta told us that he found a new job in Tokyo which was a lie.
b.Yesterday Kenta told us that he found a new job in Tokyo that was a lie.
c.Yesterday Kenta told us that he had found a new job in Tokyo, which was a lie.
d.Yesterday Kenta told us that he had found a new job in Tokyo, that was a lie.

(4) D
a.Could you call me back whether it is not convenient for you to talk now?
b.Could you call me back if you are not convenient to talk now?
c.Could you call me back whether you are not convenient to talk now?
d.Could you call me back if it is not convenient for you to talk now?

(5) B
a.If the next train were not delayed at that time, the accident might have been worse.
b.If the next train had not been delayed at that time, the accident could have been worse.
c.If the next train has not been delayed at that time, the accident must be worse.
d.If the next train were not delayed at that time, the accident would be worse.

(6) B
a.When I got to the park, Ms. Carter yet started strolling along the path, wearing a white, big, wide-brimming hat.
b.When I got to the park, Ms. Carter had already started strolling along the path, wearing a big, white, wide-brimmed hat.
c.When I got to the park, Ms. Carter was yet started to stroll along the path, wearing a wide-brimming, big, white hat.
d.When I got to the park, Ms. Carter has already started strolling along the path, wearing a big, wide-brimmed, white hat.

What do you think?