超强纠错。指出错误并改正。

(     )1. What does Jim often have at supper?

              A      B                    C   D      

(     )2. How many milk would you like?

                A                     B      C    D    

(     )3. The kids are just look, they don't want to buy.

                    A                 B              C              D

(     )4. I want three bag of rice.

                A             B   C   D            

(      )5. This pair of shoes is 50 yuans.

                A   B          C               D        

已知一幅机械加工图纸的绘图比例是2：1，请问视图中尺寸标注的高度为84mm，则该产品的实际高度为（）

A.42mm

B.168mm

C.56mm

D.84mm