I ______the paper before my lawyer explained the details to me.
A. signed B. had signed
C. signs D. has signed
Having arrived too early for the appointment, Robert decided to read the newspapers ______ time.
A. to kill B. killed
C. kill D. to be killed
______her dark sunglasses, the star wasnt recognized by crazy fans.
A. Hiding behind B. To hide behind
C. Hide behind D. Hidden behind
You ______get this book free if you can tell me the name of the writer.
A. shall B. should C. must D. need
Mary won’t keep slim ______she takes exercise every day.
A. unless B. if C. when D. or
____I will go abroad for further study or not is my top concern these days.
A. If B. Whether C. what D. where
