.
________ on the subject for half an hour, Liu Ying suddenly stopped.
|
A．To be worked |
B．To work |
|
C．Having worked |
D．Having been worked |
.
She offered me practical ________ with my research, for which I would appreciate for my whole life.
|
A．conduct |
B．certificate |
C．admiration |
D．assistance |
.
“ Look at him! He behaved ________ nothing had happened”, said Mary.
|
A．as if |
B．even if |
C．if |
D．unless |
.
The weather is so ________ this year that we can hardly stand so many cold days!
|
A．wonderful |
B．awful |
C．absurd |
D．accessible |
.
I have just come in to see if I can be _________ any assistance to them.
|
A．with |
B．on |
C．at |
D．of |
.
If this computer does not give complete satisfaction, please return it to the maker stating when and where it was ________.
|
A．designed |
B．operated |
C．purchased |
D．made |
