--Can I eat the cake, Mum?
--Yes, you can.______ you must wash your hands first.
A. But                     B. Or                  C. So

－When shall we go to Hong Kong for holiday?
－ I am not sure yet. _______ this Sunday ______ next Saturday is ok.

My friend asked me _______ I would go to the concert or not.

— Now I must go _______ I shall be late for the train.
— Have a good trip. Goodbye.

_______ the boy doesn’t do sports every day, he is fat.

Mr. Green and Mr. King have taught English at Beijing Sunshine Secondary School ________ they came to China two years ago.

I will tell him ___________ I see him.

--- How long will it be ________ the Stock(股票) Market returns to normal? 
--- At least one year, I guess.

—How can I learn English well?
—You will learn it well ________ you practice speaking it often.

—Do you have the same hobby with your brother?
—No. I like collecting stamps _______ he likes reading.