①He didin't go to bed until nine o'clock.②He is too tired to finish his ho

问题描述:

①He didin't go to bed until nine o'clock.②He is too tired to finish his ho
分别写出它们的反意疑问句,

①He didin't go to bed until nine o'clock,did he?
②He is too tired to finish his homework,isn't he?