I will have _____bread. A. a bar of B. a loaf of 选哪个

I will have _____bread. A. a bar of B. a loaf of 选哪个 不可数名词量词使用A piece of cheeseA loaf of bread A bar of soapA bar I buy____chocolate in the supermarket. 应该填a bar of还是a loaf o a bar/bottle/cup/loaf/bag/glass of的区别 求英文数量词短语如：a piece of cheesea loaf of breada bar of soapa bar a piece of a bar of a carton of a cup of a tin of a loaf of a loaf of bread 什么I have a look at a bar of soap could i have __ bar of chocolate?A.some B.a a piece of,a loaf of,a bar of它们都有“一个,一块”的意思,有何区别? Excuse me,I want a------of water A barl B pound C loaf D pie A:The __is so big. B:Yes,I want to buy a loaf of bread. Let'