do you go this week?-- Twice.A. How often; skateboardingB. How long; skateboardC. How

问题补充：

-- do you go this week?

-- Twice.

A. How often; skateboarding

B. How long; skateboard

C. How many times; shopping

D. How soon; swim

答案：

A. How often; skateboarding

B. How long; skateboard

(答案→)C. How many times; shopping

D. How soon; swim

解析：

试题分析:根据答语twice可知此句询问的次数，故用how many times来提问，go的后面常跟动词的ing形式来表示某种活动。故选C。