问题
选择题
______, I always feel I want a few more days.
A．However long is a vacation
B．However long a vacation is
C．However is a vacation long
D．However a vacation is long
答案
答案：B
题目分析：考查however的用法：however可以引导让步状语从句，结构是however+adj/adv+主谓, long是形容词，用however，句意是：无论假期有多长，我总是觉得想要更多。选B。
点评： however引导让步状语从句的用法主要记忆结构：however+adj/adv+主谓，这是however="no" matter how。