英语翻译1.昨天直到他完成作业,他才回家2.到上学的时间了3.他总是抱怨住在一个小房子里4.我觉得理解他很难5.我不知道

Yesterday he didn't go home until he finished his homework.
It's time to go to school.
He always complains of staying in a small house.
I find it's difficult to understand him.
I don't know how to use this computer.