问题
选择题
—Dear sir, I wonder________________.
—The best way is through exercise every day.
A．how can I keep healthy
B．when can I do exercise
C．how to exercise more
D．what I can do to keep healthy
答案
答案：D
题目分析：句意：先生，我想知道怎么保持健康？最好的方法是通过每天锻炼。宾语从句中必须用陈述句语序，所以选D。