He met many problems------ he was going over his lessons.A.beforeB.as soon asC.sinceD.while-九年级英语

题目简介

He met many problems------ he was going over his lessons.A.beforeB.as soon asC.sinceD.while-九年级英语

题目详情

He met many problems------ he was going over his lessons.
A.beforeB.as soon asC.sinceD.while
题型:单选题难度:中档来源:不详

答案

D
考查连词。此句中主句中是一般过去时,而从句中是过去进行时,故用while。

更多内容推荐