—do you use the Internet ?—Two or three times a week.A. How manyB. How muchC. How oftenD.

问题补充：

—do you use the Internet ?

—Two or three times a week.

A. How many

B. How much

C. How often

D. How long

答案：

A. How many

B. How much

(答案→)C. How often

D. How long

解析：句意：——你多久使用因特网一次？——一周两道三次。How often多久一次，用来询问频率。How many多少，用来询问数量。How much多少，用来询问数量和钱数。How long多长，用来询问距离。