. His article deals with the life of a rare animal ________.
| A．and most people didn’t know existed | B．that most people didn’t know it existed |
| C．most people didn’t know existed | D．that most people didn’t know existed |
— How clean the classroom is!
— Yes, I am sure someone it.
| A．has cleaned | B．cleans | C．cleaned | D．had cleaned |
We will go to visit the Great Wall it rains tomorrow.
| A．if | B．as | C．because | D．unless |
— Do you enjoy your present job?
—. I just do it for a living.
| A．Of course | B．Not really | C．Wonderful | D．Well done |
— I feel really for the interview.
— Take it easy. Sure you are the best.
| A．patient | B．serious | C．nervous | D．cool |
—Could you tell me ?
—Yes. To get back my dictionary.
| A．why did you come here | B．when did you come here |
| C．why you came here | D．when you came here |