Which one is the correct spelling?

1.A coral reef is-

2.— that life began billions of years ago in the water.

3.— chair the meeting.

4.Next month I — John for 20 years.

5.She — from flu when she was interviewed.

6.I — happy to see him, but I didn't have time.

7.The traffic lights — green and I pulled away.

8.“The job was not plain-sailing.”

9.“আমি আম পছন্দ করি।”

10.I came home after the rain —.

11.What is the meaning of the expression “bottom line”?

12.Choose the correct sentence :