The number of giant pandas is getting _________ because their living areas are becoming farmlands.
| A．less and less | B．larger and larger |
| C．smaller and smaller | D．fewer and fewer |
The bus came and we_________.
| A．got off | B．got up | C．got on | D．got to |
Yi Zhongtian’s simple and interesting explanation of history has _________ lots of TV viewers.
| A．caused | B．attacked | C．tested | D．attracted |
Studying in a foreign country is a different _________ and you can learn a lot.
| A．event | B．exercise | C．experience | D．exhibition |
Qinghai-Tibet Railway(青藏铁路) was completed last year. It is the __________ railway that connects Tibet with the other parts of China.
| A．first | B．second | C．third | D．fourth |