早教吧 育儿知识 作业答案 考试题库 百科 知识分享

IhadjuststeppedoIhadjuststeppedoutofthebathroomandwasbusydryingmyselfwithatowelIheardthesteps.[]A.whileB.whenC.sinceD.afte

题目详情
I had just stepped o
I had just stepped out of the bathroom and was busy drying myself with a towel ______ I heard the steps.

[     ]
A.while
B.when
C.since
D.afte
▼优质解答
答案和解析
B