问题
选择题
What a pity. The car ran out of sight before I could ______ its number.
A．set about
B．set down
C．set out
D．set up
答案
答案：B
题目分析：考查词组：A. set about开始，B. set down记下，C. set out出发，开始，D. set up建立，句意：真遗憾，我还没有记下号码，汽车就开得看不见了。选B。