his sister didn't know the timebecause she _________her watc

His sister had a bad cough,didn`t she?可不可以把 didn`t she 换成 ha _____her before,he didn`t know she was his aunt. He didn't play the piano ------his sister. The boy didn't know his way home同义句 1 They didn't know why she _____ the glasses . I didn't see your sister at the meeting.If she ______,she wo I didn't know his telephone number My sister didn't go to the rty last night becanse she()the b She didn\'t know,but I She didn't know back soon My sister didn't go to the cinema last night.She watched TV When the boy couldn't find his mother,he didn't know