Question

【题目】Tom has made lots of friends since he to China.
A.has come
B.comes
C.came
D.come

Answer 1

【答案】C
【解析】句意：自从汤姆来中国之后，他交了很多朋友。由since引导的状语从句的动作是瞬时的，所以since从句用一般过去时,主句用现在完成时。所以答案选C。