问题补充:
what their friendships are based upon, the important thing to remember is both of them are friendships.
A. Regardless that
B. Regardless of, that
C. Though, /
D. Despite, what
答案:
A. Regardless that
(答案→)B. Regardless of, that
C. Though, /
D. Despite, what
解析:考查固定词组和表语从句。Regardless of/despite不管;尽管;后面接名词或者名词短语;though后面接句子表示尽管;第二空that引导表语从句,that在句中不充当任何成分,只起引导作用。句意:不管他们的友谊是建立在什么之上的,需要记住的就是他们是朋友。