英语翻译
1.工人们建成这所医院花费了多长时间?
How long _____ it _____ the workers ____ build the hospital?
2.学生们正忙着为英语晚会作准备.
The students _____ _____ _____ _____ for the English evening.
3.你有没有做过扰民的事?
Have you ever _____ anything that ____ your neighbours?