—— Look at the black clouds.It ＿＿＿＿＿＿ soon.
—— Sure.If only we ＿＿＿＿＿out.
| A．is raining； didn’ t come |
| B．is to rain； won’ t start |
| C．will rain； haven’ t started |
| D．is going to rain； hadn’ t come |
We can communicate people in every part of the world the Internet．
| A．with; with | B．with; through |
| C．through; through | D．through; with |
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 |