The boy is not very tall, _______ he runs very fast.
句意：这个男孩个子不高，但他跑得很快。
考查连词辨析。and和，表并列；so因此，表结果；but但是，表转折；or或者，表选择。上文“这个男孩个子不高”和下文“他跑得很快”之间是转折关系，应用but连接。故选C。
The boy is not very tall, _______ he runs very fast.
You will feel cold _______ you don't wear a coat.
In some cities of China, you'll get fined ________ you don't walk along the crosswalk while crossing the road.
Vivian will take her daughter to the amusement park________she gets the tickets．
Which club do you prefer to join，the chess club________the dancing club？
Love from parents is like the wind-you can’t see it you can feel it.
My parents gave red packets to my cousin every Spring Festival________ she got a job, because she said she was able to make money.
They didn’t go home ________ they finished their work.
—What do you feel ______ you are looking through the old pictures?
—How time flies!
We will make fewer mistakes _______ we are careful enough.
