— do you do outdoor activities? —Two times a day.A. How longB. How soonC. WhenD. How often

问题补充：

— do you do outdoor activities? —Two times a day.

A. How long

B. How soon

C. When

D. How often

答案：

A. How long

B. How soon

C. When

(答案→)D. How often

解析：本题考查疑问词（组）的用法。根据答语：“Two times a day（每天两次）”，应选D。how often用于询问动作的频率；how long用于询问时间的长短或物体的长度，how soon与一般将来时连用，询问时间的长短，when询问具体的时间。例如：

（1）—How long is the classroom?教室有多长？

—It’s about nine metres long.大约九米长。

（2）—How long will you stay here?你要在这儿待多久？

—For about two days. 大约两天。

（3）—How soon will you come back?你多久回来？

—In two days. 两天之后。

（4）—When will you leave?你什么时候走？

—At seven p.m. tomorrow.明天下午七点。