3 Use relative clauses to express yourself The book which he likes most is The Adventures of Tom Sawyer. The book is The Adventures of Tom Sawyer.(He likes the book most.) A sentence with a relative clause is formed by joining 2 sentences. Harry Potter is a student.The student comes from Scotland.) Harry Potter is a student who comes from Scotland.3 Use relative clauses to express yourself The book which he likes most is The Adventures of Tom Sawyer. The book is The Adventures of Tom Sawyer.( He likes the book most.) A sentence with a relative clause is formed by joining 2 sentences. Harry Potter is a student. ( The student comes from Scotland.) Harry Potter is a student who comes from Scotland