this kind knife is cutting metal a.used for b.used to c.usedhe ha_英语解答

this kind knife is cutting metal a.used for b.used to c.used
he has worked in this factory sineit (build)

人气：168 ℃　时间：2019-12-29 13:52:59

解答

选a 因为be used to doing意思是习惯于做某事,而在这句话里,正确的意思是＂被用来做某事＂所以不能选b．use是不及物动词,后面如果有动词,动词前必须加介词,所以不能选c