“I’m going to the post office.” “_______ you’re there, can you get me some stamps?”
| A．As | B．While |
| C．Because | D．If |
Many new means__________ to prevent the river ____________.
| A．have found, from polluting |
| B．have found, from being polluted |
| C．have been found, from being polluted |
| D．has been found, from being polluted |
I like _____ in the spring when the weather is warm and everything begins to grow.
| A．this | B．that | C．these | D．it |
Is it to hold the 2010 World Exhibition _______ makes Shanghai the focus of the world?
| A．when | B．that | C．which | D．what |
We can never expect bluer sky unless we create less polluted world.
| A．a; a | B．a; the | C．the; a | D．the; the |
My headache is killing me．I it away．But now it’s getting worse and worse．
| A．think; is going | B．thought; was going |
| C．have thought; is going | D．had thought; was going |