Neil Armstrong was an American astronaut. He was the first person to set foot on the surface of the moon. Neil Armstrong, ______________________________________

Hướng dẫn giải:

Đáp án đúng: Neil Armstrong, who was the first person to set foot on the surface of the moon, was an American astronaut.

Hướng dẫn dịch: Neil Armstrong, người đầu tiên đặt chân lên mặt trăng, là một phi hành gia người Mỹ.