i think there are some other ways of ____(work) out this math pro_英语解答

i think there are some other ways of ____(work) out this math problem

人气：184 ℃　时间：2019-08-21 23:39:43

解答

working
of 是介词,后面需要接名词或者动词ing
我认为有许多其他的方式解决这个数学问题