I have many friends. I have lots of friends. I have a large number of friends. I have loads of friends. There are many friends of mine. There are a lot of friends of mine. There are lots of friends of mine. I have plenty friends. 之类的吧,就是找a lot of的近义词,能修饰可数名词就行. 顺便说一句,mate的意思是"伙伴",如deskmate(同桌),但不一定是朋友.
