did Charles Smith hiccup?- For about two weeks.A. WhenB. HowC. How longD. How ofte

发布时间：2020-08-21 05:22:01

---      did Charles Smith hiccup?  --- For about two weeks.
A. When
B. How
C. How long
D. How often

网友回答

A. When
B. How
(答案→)C. How long
D. How often
解析：疑问词辨析。When什么时候；How怎样；How long多长；How often多久一次。根据答语，大约两周。可知前文提问时间长短，故选C。
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