If we _________ now to protect the environment, we’ll live to regret it.
in a story book, the girl didn’t notice the stranger.
I believe it must have been in the hotel we stayed I lost my computer.
he visited the new school, he showed great interest in everything he saw.
you may have , you should gather your courage to face the challenge .
----What do you think of the film Jurassic Park in 3D?----It is .