i have to sing meaning in English

我要唱歌

He knows i have to sing at assembly this morning ,
说好了早晨见面的
I ' m sorry , i have to sing
时间到了，我要换衣服出场
He taught me a song for his birthday , and i have to sing it for him
他在生日的时候教了我一首歌，我今晚要唱给他听。
Why do i have to sing your dad ' s part ? i ' m supposed to be the guy who gets clipped
我干吗要演你爸爸的角色?我应该是被杀死的那个人
He replied . we quarrelled last march - just before he went mad , you know - pointing with his tea spoon at the march hare , - it was at the great concert given by the queen of hearts , and i had to sing " twinkle , twinkle , little bat
帽匠伤心地摇摇头， “我可不行了， ”他回答， “我和时间在三月份吵了架就是他发疯前他用茶匙指着三月兔，那是在红心王后举办的一次大音乐会上，我演唱了：