one kilo and a half of flour为什么一定要加of

one kilo and a half of flour为什么一定要加of one kilo and a half He wants half a kilo of meat I want ______ of meat,please.A.half kilo B.a half kilo C.hal "six of one and half a dozen of the other? "six of one and half a dozen of the other six of one and half a dazen of the other Hewants half a kilo of carrots.就划线部分提问 He wants half a kilo of meat改否定句 half a kilo of meat是单数还是复数 half a kilo of tomatoes ______ 1 yuan a kilo of 是什么意思?