选择填空 ()1.()the help of my teacher ,I passed the English exam

选择填空 ()1.()the help of my teacher ,I passed the English exam.A.Under B
选择填空
（）1.（）the help of my teacher ,I passed the English exam.
A.Under B.Below C.With
（）2.Kate’s parents are both doctors.（）of them goes to work by car .They both go by bus.
A.Either B.Neither C.Both
（）3.Children always（）their parents when they are very young.
A.depend on .B.depend in C.look after
（）4.This kind of machine is used for（）.
A.making plastic bags B.makes plastic bags C.to make plastic bags
（）5.It is said that potato chips（）by mistake about a hundred years ago .
A.invented B.are invented C.were invented