What a great time they have ________ with each other during lunchtime!
The tourists are__________by the_________scenes of China.
This computer is old, but it is ______ to me because it was a present from my dearest grandpa.
Nobody ______ to go into the laboratory without permission (允许).
——Mary hasn’t paid for the school things , has she ? ——_________. Her mother will pay for her .
Lucy’s colour ____ blue because she likes to be the leader, so it ____ red.