Question

though she was ill,but she was listening to the

eport carefully

Answer 1

though 与but 不能同时用，要去掉期中一个，即：

Though she was ill, she was listening to the report carefully.
或

She was ill,but she was listening to the report carefully.

Answer 2

though she was ill, but she was listening to the report carefully.

中文意思是:
虽然她是病了，但还是很细心听取报告。

Answer 3

though 不能和but 连用。。。。