问题

They still go on working, ________ they feel tired.
A:for
B:although
C:because
D:but
B:although
C:because
D:but
正确答案是:
同类题型
Jane, I can’t find Lucy in the classroom. —Oh, she ________ the piano in the music room.
_______ some of the wine — perhaps you will enjoy it.
Are you still thinking about yesterday’s game?— Oh, that’s ____________.
I don’t understand the story though there are___new words in it.
Can you tell me _______this dress is? –Sure. Not very much. Only 80 yuan.