My father was preparing for his speech _______ my mother was doing some washing last night.[ ]A. ifB

题目简介

My father was preparing for his speech _______ my mother was doing some washing last night.[ ]A. ifB

题目详情

My father was preparing for his speech _______ my mother was doing some washing last night.
[     ]
A. if                
B. while
C. unless            
D. until
题型:单选题难度:中档来源:同步题

答案

B

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