– May I play basketball with my friends now?
– No, ______ you’ve finished your homework.
A. since B. if C. unless
— Excuse me. What's the _________ usually used for?
—It's used for protecting people from the rain.
A. raincoat B. mirror C. shelf
—Would you like _______ Mount Gu tomorrow?
—If my mother _______ , I will go with you.
A. to climb; will allow B. climbing; allows C. to climb; allows
—Can you guess _______ ?
— I've no idea about it.
A. why was he late
B. when shall we have the sports meeting
C. how much he paid for the camera
Take the advice ________ is given by Dr. White.
A. who B. which C. whose
—Why are you standing here, Mrs. White?
—I'm waiting for my son. He _________ back from school.
A. hasn't come B. won't come C. doesn't come