The kids found it hard to ________ because there is a party in the next room.
A. keep still
B. make a mess
C. in silence
Tom Sawyer is very _______ because he is willing to do things which are difficult or dangerous.
A. hard-working
B. brave
C. polite
The APEC meeting is the main _______ of Beijing now.
A. survey
B. director
C. event
When the right chance _______, she will take it.
A. comes along
B. pass out
C. join in
To be a(n) _______ person means to be well-known among a group of people.
A. celebrated B. important C. lucky
Something that is _______ means we need it for a purpose or a reason.
A. careful
B. humorous
C. necessary
