In September 2008,China’s key milestone in space travel _____when Zhai Zhigang
conducted the first space walk.
| A．reached | B．was reached |
| C．has reached | D．had been reached |
Stephen Hawking believes that the earth is unlikely to be the only planet life has developed gradually．
| A．that | B．where | C．which | D．whose |
The plan just because people were unwilling to cooperate （合作）．
| A．broke down | B．pulled down | C．turned down | D．put down |
I stayed there for only two days but felt like two weeks．
| A．it | B．what | C． when | D．then |
— Do you really want to go out?
— It may rain． , I shall go out; I don’t mind the rain．
| A．Anyhow | B．Otherwise | C．Somehow | D．Therefore |
Many students are about football． They play a game whenever possible．
| A．crazy; will | B．crazy; are going to |
| C．fond; will | D．fond; are going to |