Study hard, _______ you will fall behind the others. A. and B. but c. or D. though
I don't like to travel to big cities because it seems to me that one city is very much like___ .
----It shouldn’t take long to clear up after the party if we all volunteer to help.-----That’s right.______________.
By improving reading skills, you can read faster and understand more of _______ you read.
Now everyone is concerned about how to conquer the economic crisis, __________is very important for us to preserve our standard of living.
___________ the chapter four times, and I finally understand the author’s theory.