HE OFFERED TO GIVE ME A...OF HOW THE MACHINE WORKED. A-DEMONSTRATOR...

Tiếng Anh 10 ĐỀ ÔN THI ĐẠI HỌC CAO ĐẲNG 2011 MÔN TIẾNG ANH

7, He offered to give me a...of how the machine worked. a-demonstrator b-demonstration c-demonstrate d-demonstrative