Mr Li， could you please tell me ______？
Sorry， I'm not sure． You can ask Miss Xiao．（ ）
A．where was Chinese Kung fu taught
B．how often is the dragon boat race held
C．when the ancient Silk Road started
D．how much is the Chinese painting there
Getting enough sleep is good for _______ health _______ study.
| A．neither; nor | B．both; and |
| C．either; nor | D．neither; or |
— Hey, boy. You can’t cross the street now. You have to wait _______ the traffic lights turn green.
— Oh, sorry and thank you.
| A．when | B．until |
| C．while | D．after |
Mom was cooking ________ Dad was reading newspapers.
| A．as | B．when |
| C．while | D．since |
It’s late. David washes his face _______ goes to bed.
| A．and | B．but |
| C．so | D．or |
（）—Do you believe that paper is made ________ wood?
—Yes, I do. And you can see that books are made ________ paper.
| A．from; from | B．from; of |
| C．of; from | D．of; of |