Question

—______ 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

Answer 1

C

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”。