Ex 1: Tìm lỗi sai trong đoạn văn: (1) Water scarcity is becoming one of the major limiting factor in crop production. (2) In many areas, poor agricultural practices have led to increasing desertification and a loss of formerly arable lands. (3) Plants use several mechanisms to insure their survival in desert environments. (4) Some involve pure mechanical and physical adaptations, such as the shape of the plant’s surface, small leaf size, and extensive root system. (5) Some of adaptations are related to chemical mechanisms. (6) Many plants, such as cactuses, have internal gums who give them water retaining properties. (7) Another chemical mechanism is the wax layer acting like a cover to protect the plant, which prevents the loss of internal moisture. *LƯU Ý: Có tổng là 6 lỗi - Mỗi câu mỗi lỗi - Có 1 câu là ko có lỗi sai - Bao gồm giải thích Ex 2: Điền vào mỗi khoảng trống trong các câu sau đây với một từ thích hợp: Question 36: Thank you for your great support, which pulled me ______ the hard time I had last month. Question 37: Before you sign the contract, I suggest you go ______ it with your solicitor. Question 38: Before the IELTS exam, most of my time was taken ______ with reading and writing skills. Question 39: The Greenpeace movement is going to launch another campaign ______ whaling. *LƯU Ý: Giải thích vì sao dùng từ đó.