---He was nearly drowned in a pool.
---Oh, when was ___ exactly?
--- It was in 1983 ____ he was swimming with his friends.
| A．this; that | B．that; when | C．that; that | D．what; when |
We all know the truth ___ there are air, water and sunlight there are living things.
| A．where | B．wherever | C．that | D．that wherever |
It ________ Bob drives badly.
| A．thinks that | B．is thought what | C．thought that | D．is thought that |
Is this ________ we met each other two years ago
| A．place | B．place in which | C．where | D．place which |
"Do you know ________ " "His father is a doctor."
| A．what is his father | B．who is his father |
| C．what his father is | D．who his father is |
I have no idea ________ or not he has finished the work.
| A．if | B．that | C．whether | D．which |