—The meeting is about to start, yet the speaker hasn’t turned up.
— No one knows ____.
| A．what the matter is | B．what is the wrong |
| C．what is the matter | D．how matter stood |
--Let’s go to see our teacher. ---_____.
| A．That will do | B．That’s all | C．That’s right | D．All right |
--Have you handed in your composition? ---____.
| A．Yes, I handed | B．No, I didn't | C．Yet not | D．Not yet |
I have been looking for this book for months, and _____ I have found it.
| A．at least | B．in no time | C．at last | D．at present |
Air and the sun's rays create much distortion, and whatever tends to _____ their influence is useful to the astronomer.
| A．exclude | B．eliminate | C．extinguish | D．impose |
His job at the hospital did not pay much, so he found another _____.
| A．on the rise | B．on the spot |
| C．on the decline | D．on the side |