he is ill he goes to work.A. Although; butB. \\C. Although ;/D. But; although

问题补充：

he is ill, he goes to work.

A. Although; but

B. \\

C. Although ;/

D. But; although

答案：

A. Although; but

B. \\

(答案→)C. Although ;/

D. But; although

解析：although引导的从句不能与but, however连用，但可与yet, still连用。不能说：Although he was old, but he worked hard. 应把but去掉。当然，保留but而去Although也可。本句句意为：虽然他病了，但是他还去工作。答案为C。