Bài 1: Dùng từ gợi ý viết lại câu: 1, Whenever she does an exercise she makes mistakes, though she tries very hard ( however) 2, It doesn't matter what you cook, I won't eat anything ( whatever) 3. You ought to fasten your seat - belt before driving away ( shouldn't) 4, Lyn found it difficult to accept the situation ( difficulty) 5, I will let you come with me on one condition. You must do exactly what I tell you ( so) 6, Dr Watson was sometimes rather naive. You have heard about him in the sherlock Holme stories ( whom) 7, Brasilia was desgined by Lucio Costa. It replaced Rio de Janeiro as the capital of Brazil ( Ved) 8, It was completed on time though some of the staff were ill ( in spite) 9, He didn't post thoes letters. He forgot again ( to) 10, The farmers had applied new technology in their fields. The output of rice was raised ( Thanks to.....which...)