Question

       grandfather worked very hard,       he couldn’t support the big family.

A．Though, but

B．/, and

C．Though, and

D．Though, /

Answer 1

D

连词辨析。Though虽然，尽管；but但是；and和，并且。句意：虽然我的爷爷工作非常努力，但是他也不能维持这个家庭。Though本身即可表示虽然但是的含义，故选D。