Uint 1 What's the matter?
Uint 2 I'll help to clean up the city parks.
Uint 3 Could you please clean your room?
Uint 4 Why don't you talk to your parents?
Uint 5 What were you doing when the rainstorm came?
Uint 6 An old man tried to move the mountains.
Uint 7 What's the highest moutain in the world?
Uint 8 Have you read treasure island yet?
Uint 9 Have you ever been to a museum?
Uint 10 I've had this bike for three years.