Tom _________ in making a model plane. It was a _________.
— Do you think I can pass the test?— Of course. Why don’t you just your abilities?
—I know you will go to Beijing.Could you tell me when you will__________ .—Tomorrow afternoon.
I hear ________ your grandpa __________ your grandma like watching Beijing Opera.
---- Will you answer the telephone? It ________ be your mother.---- Sorry, I _______. I’m very busy.
We can’t buy anything because______ of the shops are open at this time.