英语帝来,将下列句子改为被动语态.
1.They have already read this book.2.Someone has stolen his bicycle.3.People in many countries speak English.4 .Mao Dun wrote the novel Midnight.5.The students asked the teacher to tell a story.6.You will see this kind of program everywhere.7.They will send him to study abroad next year.8.I have cleaned the window several times.9.He will show you around the factory tomorrow.10.She's going to make a new film next month.