We should try our best to those people after the disaster.
A. break out
B. cheer on
C. break up
D. cheer up
网友回答
A. break out
B. cheer on
C. break up
(答案→)D. cheer up
解析：考查短语辨析。A. break out爆发；B. cheer on向……喝彩；C. break up破裂；D. cheer up振作起来。句意：我们将尽我们最大的努力使那些灾后的人们振作起来。故D正确。