The new-designed car is on show now. I wonder ______.
--Are there any trees __________ the house? -- No, there aren’t.
--__________ your new students? --Yes, __________.
-- Do you like playing __________ football? -- Yes, I want to be __________ good football player.
Nancy spent half an hour ________ the piano every day.
The students look______ and their teacher is looking ________ at them.