I’LL LET YOU BORROW THE BOOK BUT YOU MUST PROMISE TO RETURN I...

6. I’ll let you borrow the book but you must promise to return it next week. A. If you promise to return the book, I let you borrow it. B. If you promised to return the book, I’ll let you borrow it. C. If you promise to return the book next week, I ll let you borrow it.’ D. If you promise to return the book next week, I won’t let you borrow it.