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:动词短语辨析。A建立,设立;B写下;定居;C,储蓄,拿出;放在一边,不管不顾;D出发,动身;根据句意可知C正确。句意:为了保持健康,他每天抽出一小时来锻炼身体。