Question

【题目】 _ they were quite tired, _ they continued working.

A. Though, / B. Although, but C. Because, so

Answer 1

【答案】A

【解析】

试题分析：句意：虽然他们相当疲倦，但是他们继续工作。英语中，承接连词与并列连词不能连用：although/ though与but不能连用，because与so不能连用。故排除A和B。故选A。