Question

【题目】_____has your brother studied in New York? —For two years.

A. How old B. How often C. How long

Answer 1

【答案】C

【解析】句意：-你的兄弟在纽约学习多久了?- 两年了。How old 多大；How often多久一次；How long多长时间。所以选C。