问题
选择题
To keep ______, we must do more out-of-door exercises.
A．well
B．fine
C．fit
D．health ‘
答案
答案：C
keep fit是词组，指“保持健康”。
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To keep ______, we must do more out-of-door exercises.
A．well
B．fine
C．fit
D．health ‘
答案：C
keep fit是词组，指“保持健康”。