—Thelightsinhisroomarestillon．Doyouknow ? —Theexamis...
来源：语文精选馆 2.17W
问题详情：
—The lights in his room are still on．Do you know ? —The exam is coming．
A．why does he stay up so late B．why he stays up so late
C．what is he doing D．what he is doing
【回答】
B
知识点：宾语从句
题型：选择题
