B. PHẦN TỰ LUẬN: (Thí sinh làm trực tiếp vào đề thi) I. WORD FORM (1 point / 0.25 each): Give the correct form of the word in each bracket. 1. Sports are very good for our ____________. (healthy) 2. Rubber trees are very ____________for making elastic things. (use) 3. Last night the singer sang very ____________ (good) 4. All the pupils have done the exercises ____________. (easy)