Bài 1: Chuyển những câu sau sang dạng bị động: They built this house in 2010. The teacher is explaining the lesson to the students. My mother will cook dinner tonight. The children have broken the window. Have you finished your homework yet? Đáp án: This house was built in 2010. The lesson is being explained to the students by the teacher. Dinner will be cooked by my mother tonight. The window has been broken by the children. Has your homework been finished yet? Bài 2: Chọn dạng đúng của động từ trong ngoặc để hoàn thành các câu sau: The letter (write) by my sister yesterday. The car (repair) by the mechanic last week. The house (build) in 2000. The work (not finish) yet. The food (delicious) and (cook) well. Đáp án: was written was repaired was built hasn't been finished is delicious and is cooked Bài 3: Viết lại các câu sau theo nghĩa bị động: They are painting the walls. She is reading a book. He is writing a letter. They are watching a movie. She is cooking dinner. Đáp án: The walls are being painted. A book is being read by her. A letter is being written by him. A movie is being watched by them. Dinner is being cooked by her. Bài 4: Chuyển những câu sau sang dạng phủ định: The students have finished their homework. The teacher has explained the lesson. The mechanic has repaired the car. They have built a new house. My mother has cooked dinner. Đáp án: The students haven't finished their homework. The lesson hasn't been explained by the teacher. The car hasn't been repaired by the mechanic. A new house hasn't been built by them.