问题补充:
it was very cold, my friend still went swimming this morning.
A. Although;/
B. Although; but
C. But; although
D. /;although
答案:
(答案→)A. Although;/
B. Although; but
C. But; although
D. /;although
解析:句意:虽然很冷,但是我的朋友还在早上游泳。Altough虽然,尽管;but但是;这两个词不能同时出现在同一个句子中,故选A。