—What do you think about smoking?
—Well，just as someone puts ________，smoking kills.
| A．this | B．it | C．that | D．one |
He couldn’t stand the noise made by the factory, so he wrote a letter to the newspaper to _________ about it.
| A．introduce | B．quarrel | C．care | D．complain |
My opinion about the modern education is not similar to _________of the other teachers’.
| A．it | B．that | C．one | D．what |
My flowers grew well all the time. _________, your dog destroyed them all!
| A．While | B．Although | C．However | D．And |
By the end of last month, ten primary schools _________ with the help of Project Hope.
| A．had set up | B．had been set up | C．was set up | D．set up |
There are many good stories about the Long March, _________this is the most instructive.
| A．of which | B．in which | C．from which | D．by which |