difficulty we will face, we should have confidence and try to solve it.
A. However
B. No matter how
C. Whatever
D. Whenever
网友回答
A. However
B. No matter how
(答案→)C. Whatever
D. Whenever
解析：考查状语从句。因为difficulty是名词，所以只能选用whatever。 However和no matter how只能放在形容词前。 Whenever表示的是时间。
句意为无论我们将会面临什么困难，我们都应当有信心并且尽量解决它。