tow pieces of musics?

是否有pieces of musics这种用法? can l have tow pieces of cake There are tow pieces of < >(news) today. please give me tow----.为什么用pieces of paper? ( )tow pieces of wood( ) 前面和后面应该填什么词? Tow pieces of advise 做主语 ,谓语动词用单还是复 Bits and pieces of some pieces of papers? three pieces of bread^^^^^^ two pieces of coats two pieces of coat 那个对? two pieces of chocolate还是two pieces of chocolates two pieces of ckae 还是two pieces of cakes