Question

My mother cuts vegetables ______ a knife. (by,with,on).

Answer 1

This is an easy question.

The answer to this question is with.

My mother cuts vegetables with a knife.

You can understand that you cannot use the other two solutions to fill in the blank given.

When you use the word with, it depicts the usage of the knife with the help of it.

Answer 2

My mother cuts vegetables with a knife.