Dưới đây là phần điền mạo từ thích hợp cho các câu trong bài tập:

11. The first man to land on **the** moon said: "This is **a** small step for a man, but giant step for mankind."
12. They had **the** best holiday they had ever had by **a** lake in **the** area near **the** United States.
13. **Some** of my friends advised me to take **a** taxi; another told me to walk home for **a** change.
14. "Take **a** seat. I have told you **a** hundred times not to come into **the** room with **a** hat on."
15. Didn't you watch **the** television program about weather? Take **an** umbrella with you in **case** it rains.

Hy vọng giúp ích cho bạn!