Relative clauses add information about a noun in the main clause.
Use the relative pronoun who or that for people.
Use the relative pronoun that or which for things and animals.

Mr. Bean in the exam trying to cheat from another student. There are some questions about using "Relative pronouns"

Mr. Beans Takes an Exam - Relative Pronouns

mr-beans-takes-an-exam-relative-pronouns

Let's do English ESL general grammar practice. Relative clauses add information about a noun in the main clause.
Use the relative pronoun who or that for people…