—Thanks for your help，Mary! —________.
| A．Good | B．Don’t thank me |
| C．You're welcome | D．All right |
______ went hiking last weekend because of the bad weather.
| A．Someone | B．No one | C．Everyone | D．Nothing |
—Must I wait for you here?
—No, you ______.
| A．don't | B．can't | C．mustn’t | D．needn’t |
Mary, put on your coat, ______ you'll catch a cold.
| A．and | B．or | C．so | D．but |
We know that she enjoys ______ books very much.
| A．read | B．reads | C．reading | D．to read |
I am very thirsty. Could you please give me ______ water?
| A．some | B．little | C．many | D．other |