III. Chọn đáp án đúng nhất cho câu viết lại từ các từ gợi ý. 21.This/ be/ Nga. A. This are Nga. B. This is Nga. C. This am Nga. D. All are correct. 22. How/ be/ you today? A. How are you today? B. How is you today? C. How you are today? D. How you is today? 23. We/ be/ fifteen years old. A. We’s fifteen years old. B. We’re fifteen year old. C. We’re fifteen years old. D. We’s fifteen years old. 24. Morning/ Miss Chi. A. Hello morning, Miss Chi. B. Hi morning, Miss Chi. C. Miss Chi, good morning. D. Good morning, Miss Chi. 25. I/ be/ fine/ thank you. A. I am fine, thanks you. B. I am fine, thank you. C. I are fine, thank you. D. I fine am, thank you.