many(C)
much(U)
a mass of (UC )
a ton of (C)
a pack of (C)
a dozen of (C)=dozens of
a lot of=lots of (UC)
large quantities of=a large quantity of (C)
plenty of (U〕
a good many of (C〕
a large(great) number of (C〕
a variety of (C〕
varieties of (C〕
a great deal of (U〕
many aananother(后接单数可数,表示许多〕
注:U表示不可数,C表示可数.