1. Please choose the best answer to fill in the blank.
(1) ______ yùdào duō dà de kùnnán, wǒmen dōu yào jiānchí xiàqù.
(1) ______ 遇到多大的困难,我们都要坚持下去。
A. 无论 (Wúlùn)
B. 因为 (Yīnwèi)
C. 如果 (Rúguǒ)
Learn Commonly Used Chinese Word Pairs to Describe Different Situation