Question

10.      he is very old，he runs faster than most young men.

A. Since      B. Though

C. However    D. So

Answer 1

10. B考查连词辨析。since“既然”;however“然而，但 是”;so“所以”，表示结果；though“虽然；尽管”，引导 让步状语从句。故选B。