for the timely investment from the general public, our company would not be developing so fast as it is.
| A．Had it not been | B．Were it not |
| C．Was it not | D．Should it not be |
The head teacher told us that most of the students ______ born in the 1990s.
| A．were | B．had been |
| C．are | D．have been |
______ prevent her from attending the meeting, he took away the key to their car ______.
| A．So as to; by mistake |
| B．In order to; on purpose |
| C．In order to; to her surprise |
| D．So as to; in surprise |
This is the first time that the Chinese woman astronaut ______ sent into space.
| A．was | B．Is |
| C．had been | D．has been |
It is reported that the countries attending the opening ceremony of the London Olympics ______ 229.
| A．added to | B．added up |
| C．added up to | D．add |
In recent years______global warming is becoming______concern for people all over the world.
| A．the；the | B．不填；不填 |
| C．不填；a | D．the；不填 |