Chuyển từ chủ động sang bị động 1.Alices strange ideas astonished everybody. 2.The garage is going to repair our car for us next week. 3.someone left the purse in the classroom. 4.the scientists have studied the problem carefully. 5.the students in my class are going to organize a surprise party this evening. 6.he asked me to send a stamped envelope. 7.they have awarded Andrew a prize for his essay. 8.how do people make candles? 9.the pollution in the city is affecting peoples breathing. 10.who invented the telephone? 11.Mr. Smith has taught us English for 2 years. 12.did they build that house in 2013? 13.The tsunami destroyed a large area in Japan last year. 14.the Prime Minister is making a speech at the moment. 15.they didnt invite me to the birthday party. 16.people speak English in many countries over the world. 17.you must finish there exercises before 4 oclock. 18.they have built a new airport. 19.my teacher used to give me many exercises. 20.he isnt going to buy this house. 21.his wife usually brings him sandwiches at lunch time. 22.Vietnam exports rice to many countries. 23.will you post this letter on the way to work? 24.Nobody can give a better solution to this problem.