问题
选择题
(2013·成都第二次诊断)As the road to the airport is under reconstruction, we'd better ________ early to avoid the traffic jam.
A．pay off
B．set off
C．put off
D．take off
答案
答案：B
选B 考查动词短语辨析。pay off“还清”；set off“动身，出发”；put off“推迟”；take off“脱下，起飞”。此处表示早点动身以避免堵车，因此选B。