—When do you get up every day?—I usually get up six o’clock.A. toB. inC. onD. at

问题补充：

—When do you get up every day?

—I usually get up six o’clock.

A. to

B. in

C. on

D. at

答案：

A. to

B. in

C. on

(答案→)D. at

解析：在表示时间时，to表示差……到……；in在一个时间范围内；on在具体的某一天；at在具体时刻。句意：你每天什么时候起床？——我通常在六点钟起床。结合语境可知选D。