例如,像I did`n finish my homework.finsh 变成了原型,为什么I have`t clean

I have to finsh my homework I have some problem (finish) my homework I have _____(finish) my homework. I have to finish my homework ( )science. I haven't finish my homework yet. I can't go to the party,_____ I have to finish my homework I can’t r______ before I finish my homework. I won't go home ______ I finish my homework I knew I couldn't finish my homework ( ). Can I finish my homework?Sorry,I can't. I didn't go home until I finished my homework 中 finish 为什么加e I won't leave until I __ my homework.为什么是finish,