15.We always keep ________ spare paper,in case we ran out.

问题描述:

15.We always keep ________ spare paper,in case we ran out.
A.too much\x05B.a number of\x05C.plenty of\x05D.a good many
以及这四个选项的区别,

答案C
本题考查表数量的短语的用法.too much修饰不可数名词;a number of和a good many修饰可数名词;plenty of修饰可数名词或不可数名词.本句句意为“我们总存有大量的备用纸,以防纸用完了”.“纸”为不可数名词.