Remember most teachers it a lot more IF it was a classic novel the student pick. Don't know about your teacher. So how about any of these books,
2001: A Space Odyssey by Arthur C. Clarke
The 39 Steps by John Buchan
The Merchant of Venice (Folger Shakespeare Library Series) by William Shakespeare
The Maltese Falcon by Dashiell Hammett
Brave New World by Aldous Huxley
War of the Worlds by H. G. Wells
The Time Machine by H. G. Wells
For Whom the Bell Tolls by Ernest Hemingway
The Old Man and the Sea by Ernest Hemingway
Gone with the Wind by Margaret Mitchell
The Good Earth by Pearl S. Buck
Sayonara by James A. Michener
Sherlock Holmes: The Hound of the Baskervilles by Arthur Conan Doyle
Sherlock Holmes: The Sign Of Four by Arthur Conan Doyle
Murder on the Orient Express by Agatha Christie
The Gift of the Magi by O. Henry
Around the World in Eighty Days by Jules Verne
Remember these authors's work, teachers don't consider them to be classic novels when they are good stuff. They will say it ok and not wrong to read it on your own time:
Tom Clancy
John Le Carre
Piers Anthony
Anne McCaffrey
Jeffrey Archer
Dale Brown
Robin Cook
Tess Gerritsen
Anthony Horowitz
Charlie Higson
Raymond Benson
J.K. Rowling
Mercedes Lackey
Philip Pullman
Terry Brooks
George R. R. Martin
James Rollins
Dan Brown
Robert Crais
James Patterson
Vince Flynn
Matthew Dunn
Robert Littell
Daniel Silva
Suzanne Collions
Sandra Brown
Thomas Harris
Catherine Coulter
W.E.B. Griffin
Charles Cumming
Robert Harris
Anne Rice
Stephen King
Jackie Collins