![](https://cos-cdn.shuashuati.com/pipixue-wap/2020-1230-1107-56/ti_inject-812ce.png)
用介词填空,完成句子。 1. The commis is chopping the onions the chopping board. 2. The commis is sharpening the knife a steel. 3. The commis is putting chocolate icing the cake. 4. The plastic chopping board is made plastics. 5. The bone saw can remove bones the meat.