— I go to bed and get up early every day.— That’s a good . It keeps us healthy.A. habit B.

问题补充：

— I go to bed and get up early every day.

— That’s a good . It keeps us healthy.

A. habit

B. hobby

C. rule

D. interest

答案：

(答案→)A. habit

B. hobby

C. rule

D. interest

解析：habit习惯，嗜好；hobby嗜好，业余爱好；rule 统治，规则；interest兴趣，爱好。句意：我每天都早睡早起。——那是个好习惯。会让我们保持健康。结合语境可知选A。