can we get to the airport? The plane to Guangzhou takes off at 3:00 p.m. —Don’t worry. We

问题补充：

can we get to the airport? The plane to Guangzhou takes off at 3:00 p.m.

—Don’t worry. We will be there in ten minutes.

A. How long

B. How soon

C. How fast

D. How often

答案：

A. How long

(答案→)B. How soon

C. How fast

D. How often

解析：根据答语in ten minutes“十分钟后”可知，应该用How soon“多久”来提问。How long“多长时间”，一般用for或since来回答；How fast“多快”是提问速度的；How often“多久一次”是提问频率的。所以本题选B。