–Would you permit me ______here?
- Sorry, we don’t permit _____ here in the reading room.
| A．smoking; smoking | B．to smoke; to smoke |
| C．smoking; to smoke | D．to smoke; smoking |
Give me a chance, ________ I’ll give you a wonderful surprise.
| A．if | B．or | C．and | D．while |
— How about dinner tonight? It's on me.
— ______ .
| A．You are welcome | B．Oh, I'd like to | C．Well, I'm afraid so | D．That's all right |
She ______ someone, so I nodded to her and went away.
| A．phoned | B．had phoned | C．was phoning | D．has phoned |
I'll be out for some time. ______ anything important happens, call me up immediately.
| A．In case | B．As if | C．Even though | D．Now that |
— I hope to take the computer course.
— Good idea. ____ more about it, visit this website.
| A．To find out | B．Finding out |
| C．To be finding out | D．Having found out |