问题补充:
In order to keep healthy, he an hour every day to take exercise.
A. set up
B. sets down
C. sets aside
D. set out
答案:
A. set up
B. sets down
(答案→)C. sets aside
D. set out
解析:考查词组:A. set up建设,B. sets down记下,C. sets aside放置一边,留出,腾出,D. set out开始,句意:为了保持健康,他每天留出一小时锻炼。选C。