— Finish your homework, ______ you can’t watch TV, Jack.— All right, Mum.A. or B. but C. and
Nanjing is one of _______ in China.
We are sure one day the air in Beijing will be much ______ than today.
We arrived _____ Shanghai______ the morning of July 2nd.
_____ too much TV isn’t good _____ our eyes.
The weather in Beijing is ________.