分类：教育/科学-学习帮助
问题：这些词组后面哪些只能跟可数名词，哪些只能跟不可数啊anumber 
a number of;a sum of;plenty of;a amount of;a great deal of;a quanty of
回答：a number of / a great many / many/few/ a few 等, 接可数名词复数
an amount of / a great deal of / a large sum of/ much / little / 
 a little 等,接不可数名词
a lot of/ plenty of/ a quantity of /some 等既可接可数名词复数也可接不可数名词