问题补充:
—These Maths problems are too hard to . Can you help me?
—There are many ways, but the most important is to try your best.
A. work out
B. come out
C. put out
D. look out
答案:
(答案→)A. work out
B. come out
C. put out
D. look out
解析:此题重点考察四个短语的区别。work out 想出; 制订出; 解决; 确定。come out 出现。look out 留神 当心 注意 朝外看put out 熄灭;伸出;出版;使不方便,打扰。