The teacher was worried about the boys in her class, for they spent _________time playing computer

题目

The teacher was worried about the boys in her class, for they spent _________time playing computer
games . A .a large amount of B . a large number of C .large amount of D . large numbers of . 应选那个?

答案

C.
时间是不可数名词,所以不能a ,排除A,B,number不加s,排除D