grammar

Puzzling sentences
Choose the correct answer:
1- A power failure occurred, …….the lamps went out.
a) then b) so c) later d) next
2- He was concerned……the connection between unconscious and artistic activity.
a) with b) in c) of d) for
3- You……that letter- it is not addressed to you
a) shouldn't read b) ought not to read
4- It was raining at first, but ……the sun came out
a) in the end b) at the end
5- Fortunately, the fire fighters ……put the fire out before it caused too much damage.
a) could b) were able to
6- William is very excited……starting his new job.
a) about b) by c) for d) with
7- A: Are you OK? You look really pale. B: I need the bathroom. I think I ….sick.
a) will be b) am going to be
My answers
1- b) so 2- a) with 3- a) shouldn't read 4- b) in the end 5- b) were able to
6- a) about 7- b) am going to be
What do you think of my answers?