问题补充:
you are always optimistic and self-confident, I can wait to make friends with you.
A. Though
B. Since
C. While
D. So
答案:
A. Though
(答案→)B. Since
C. While
D. So
解析:考查连词。句义:因为你总是乐观自信,所以我迫不及待地和你交朋友。Though,尽管,虽然,since因为由于,while当。。。的时候,尽管,so所以。所以B正确。