Question

______you are always optimistic and self-confident, I can't wait to make friends with you.

A．Though

B．Since

C．While

D．So

Answer 1

B

试题分析：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。