1.她会一直唱下去,除非有人叫她停止。She will be singing unless somebody asks her to stop2.要是我没有给你打电话,你明天就过来。Come to me if I don't give you a call3。他们的回答完全一样。their anwers is same to eacher other exactly....
1,She'll continue singing unless someone tells her to stop.2, If I don't have time calling you,You can come here tomorrow.3, Their answers are competely the same ....