— did you sleep last night?—Only five hours. I stayed up late to do my homework.A. How soo

问题补充：

— did you sleep last night?

—Only five hours. I stayed up late to do my homework.

A. How soon

B. How often

C. How long

D. How much

答案：

A. How soon

B. How often

(答案→)C. How long

D. How much

解析：词义辨析。how long 指时间或长度，意为“多长”； how soon 指时间“多久，多快”，常用于将来时；how often 指频率，“多久一次”；how much 指金钱“多少”。根据答语应为“多长”。