问题补充:
--- do you read English newspapers? ---I read China Daily every day.
A. How long
B. How soon
C. How often
D. How far
答案:
A. How long
B. How soon
(答案→)C. How often
D. How far
解析:How long多长;How soon多久;How often多久一次;How far多远。根据下文,我每天读中国日报。可知上文提问的是频率,故选C。