Question

【题目】Mark isn't coming to the concert ___________ he has finished his work.
A.so
B.when
C.although
D.because

Answer 1

【答案】C
【解析】句意：马克不来听音乐会，虽然他已经完成了他的工作。so所以，引导原因状语从句；when当……时候，引导时间状语从句；although尽管、虽然，引导让步状语从句；because因为，引导原因状语从句。所以选C。