-Our city looks more beautiful!
-Yes. Lots of trees and grass ______ since last year.
| A．have been planted | B．are planted |
| C．will be planted | D．were planted |
—has Jack been studying English?
—Since he was seven years old.
A、How long B、How often C、When
The little girl has to spend two hoursthe violin every day.
A、to practice playing
B、practicing playing
C、to practice to play
We should read English forthirty minutes every day.
A、at least B、at last C、at first
My father was watching TVthe earthquake happened.
A、as soon as B、while C、when
Would you mindhere?
A、don’t smoke
B、not smoking
C、not to smoke