21-25题请从以下词组中选择正确答案，并将其字母（不是单词）填入空中A. in jeopardyB. In light ofC. in times ofD. bring aboutE. curbAs Franklin Roosevelt declared, ______ crisis, “Above all, do something.”

A. It is a bad idea.
B. It is as effective as speed bumps.
C. It is not useful.
D. It should be combined with education.

A. They follow traffic rules closely.
B. They keep within speed limits.
C. They like to go at high speed.
D. They tend to drive responsibly.