问题
选择题
He was determined to hold on to this job ___ difficulties he might run into.
A．whatever
B．however
C．no matter how
D．no matter
答案
答案：A
题目分析： 句意：他决定无论他会遇到什么困难，他都决定坚持工作。这里用whatever引导让步状语从句，相当于no matter what修饰difficulty，no matter how/however是修饰形容词或副词，所以选A。