--- Look! The plane is sending up signal “SOS”. It ________ be in danger.
| A．will | B．should | C．must | D．can |
–Do you know about Jay Zhou ?
--He is famous as a singer.
A. friendly B. well-known C. hard-working
If we don’t protect the Earth, more and more wild animals will die out.
A. appear quickly
B. disappear completely
C. stay healthy
It’s wise of you to know how to deal with the problems.
A. wrong B. clever C. polite
Perhaps it will snow tomorrow.
A. Sometimes B. Never C. Maybe
It’s very important for a human being to be polite.
A. person B. encyclopaedia C. plant