_____ is even important _____ as the earth cooled down, water began to appear on its surface.
| A．That, which | B．What, that |
| C．What, what | D．It, that |
－Why was Li Ning so successful?
－The number of young people with money was on the increase and sports had never been so popular.
| A．spent | B．to spend |
| C．spending | D．to be spent |
Their use was limited by laws, the first dates back to the 14th century.
| A．of which | B．of them |
| C．from which | D．in them |
－Sorry, I didn’t get what you were saying!
－Well, I mean I against you because I have so much garbage to carry.
| A．am protesting | B．protest |
| C．am going to protest | D．have protested |
He was driving a lorry load of bananas he came off the road at a bend.
| A．while | B．after |
| C．when | D．as |
This non-stop communication, the experts think, has made easier for British people and Americans to understand each other.
| A．this | B．that |
| C．which | D．it |