问题
选择题
Considering his health, I advise him to ______ an hour or two each day to work out．
A．set about
B．set off
C．set up
D．set aside
答案
答案：D
考查短语辨析。set about 着手做某事，set off 动身，出发，set up 建立，set aside 留出，抽出，句意：考虑到他的健康，我建议他每天抽出一到两小时锻炼身体。故选D。