I don't understand why you have your coat ___.Just buy a new one.A.mendedB.mendwhy we choose

I don't understand why you have your coat ___.Just buy a new one.A.mendedB.mendwhy we choose
I don't understand why you have your coat ___.Just buy a new one.
A.mended
B.mend
why we choose

I don't understand why you have your coat ___.Just buy a new one.A.mendedB.mendwhy we choose
have sth done,表示被动语态,固定结构,记住就好.