________he couldn’t understand was________，as a teacher of Chinese，he was asked to teach history.
| A．What；that | B．What；what |
| C．What；which | D．Why；how |
His new appointment takes _____ from the beginning of next month.
| A．place | B．effect | C．post | D．office、 |
On this happy occasion, I'd like to say that we are _____ much obliged to you for your kind cooperation.
| A．even so | B．ever so | C．as yet | D．so far |
The car was completely _____ and the driver seriously injured.
| A．broken off | B．taken off | C．written off | D．picked up |
What is most obvious in this book are all those details of daily living which make Mrs. Richard _____ common.
| A．nothing but | B．anything but | C．above all | D．rather than |
The firemen managed to _____ the fire in time.
| A．extinguish | B．prevent | C．suppress | D．ruin |