— Look at the boy playing basketball on the ground. Is it George?— It ________ be him. He told me he would play basketball after class, but he’s not sure.

—What is the result of the survey?—15% of those surveyed worry that in the long term children _________ be more dependent on their parents, which does no good to them.

—     you play the piano at this time of the day ? I need a good rest for tomorrow’s test. — Sorry.  

--____________ you sing an English song?--- Yes, I can.

You are tired. You _____ go to bed early.