No scientists can exactly figure out what ________ happened ________ at that time, which caused the extinction of the dinosaurs.
| A．on earth; on the earth |
| B．on the earth; on earth |
| C．on earth; on earth |
| D．on the earth; on the earth |
It is reported that a bus went out of _____ control on a highway ____ south of the city last night.
| A．/; / | B．/; the | C．the; / | D．the; the |
---I think we should buy a car so that it will be convenient for us to go to work.
---______, but do you think we have so much money ?
| A．You are joking | B．Come off it |
| C．I don’t believe it | D．You are dead right |
It is the first time that we ________ a film in the cinema together as a family．
| A．see | B．had seen | C．saw | D．have seen |
I would appreciate ______ very much if you could give me some suggestions.
| A．this | B．it | C．that | D．you |
George returned after the war, only _______ that his wife had left him.
| A．to be told | B．telling | C．being told | D．told |