Climbing Mount Tai was ________ unusual experience to me.
| A．a | B．/ | C．the | D．an |
—Must I take the medicine every day?
— No, you______.
| A．must not | B．may not | C．haven’t | D．needn’t |
You look _______ . Do you hear the _________ news?
| A．excite: excited | B．excited: excite |
| C．excited: exciting | D．exciting: excited |
I’m sorry to keep you _______ for almost two hours.
| A．wait | B．to wait | C．waiting | D．waited |
He looks very pale. He may have _______ fever.
| A．an | B．a | C．the | D．/ |
When the traffic lights are red, we _______ stop.
| A．should | B．might | C．must | D．may |