While cleaning the snow on the road, _________.
| A．a wallet was found on the ground. | B．a wallet appeared on the ground. |
| C．I found a wallet lying on the ground. | D．I found a wallet laid on the ground. |
--- Is your father a teacher of English in No. l Middle School?
--- No. But he ______ English there for ten years.
| A．has taught | B．has been teaching |
| C．taught | D．had taught |
It is none of your business ______ other people think about you. Believe in yourself.
| A．how | B．what | C．which | D．when |
This advertisement is a/an______ example of their marketing strategy
| A．average | B．specific | C．typical | D．flexible |
We must soon ______a new teacher to the class.
| A．adapt | B．appoint |
| C．exchange | D．abuse |
The tourists, had enjoyed themselves so much in the botanic garden, were worn out。
| A．all of what | B．all of which |
| C．all of them | D．all of whom |