He failed the exam ________ he was too careless.A．becaus Wap版

试题详情及答案解析

He failed the exam ________ he was too careless.

A．because	B．but
C．so that	D．so

答案：A

试题分析：A. Because因为；B. but 但是；C. so that 目的是；D. So因此；句意：---他考试失败了，是因为他太粗心了。结合句意，故选A
考点：考查连词的辨析。