Hewasdoinghishomework
来源:语文精选馆 1.19W
问题详情:
He was doing his homework __________ he heard the telephone ringing.
A. before B. after C. while D. when
【回答】
D
知识点:连词
题型:选择题
问题详情:
He was doing his homework __________ he heard the telephone ringing.
A. before B. after C. while D. when
【回答】
D
知识点:连词
题型:选择题