Which of the two cameras are you going to buy?—I’ll buyof them so I can give one to my fri

问题补充：

Which of the two cameras are you going to buy?

—I’ll buyof them，so I can give one to my friend．

A. all

B. both

C. neither

D. either

答案：

A. all

(答案→)B. both

C. neither

D. either

解析：both 二者全都；all 三者或三者以上全都；either 二者择一；neither 二者皆不。根据句中“the two cameras”和“I can give one to my friend．”知，应用both.