- do you read English books? -Twice a day．A. How many times B. How farC. How longD. How o

问题补充：

．- do you read English books? -Twice a day．

A. How many times

B. How far

C. How long

D. How often

答案：

A. How many times

B. How far

C. How long

(答案→)D. How often

解析：考查特殊疑问词。根据答语Twice a day 可知对频率进行提问，故选D。