—How often do you chat with your friends online?— . I'm busy with my study.
—Whose T-shirt is this?—It________be John’s.It’s________small for him.
—It’s difficult for village children to cross the fiver to school.—I think a bridge________over the river.
Jack________dislike the weather in Beijing in spring,because there is so much wind and sand.But now he________it.
—How much is the ticket to Central Park?—A one-way ticket________$40,and you call________another $20 for a round trip.
It’s sunny.Let’s go sighting________watching TV in our hotel room.A.thanks toB.instead ofC.as well as