people used the computer thirty years ago but now it’s very popular.A. A few B. FewC. A

问题补充：

people used the computer thirty years ago, but now it’s very popular.

A. A few

B. Few

C. A little

D. Little

答案：

A. A few

(答案→)B. Few

C. A little

D. Little

解析：本题中的但是表示转折，所以前半句的含义是很少的人30年前使用电脑，few表示很少，修饰可数名词people，故本题选B。