It is ______ work of art that the museum has decided to buy and keep it .
A such an unusual B a so unusual C such unusual D so unusual
It was __________ back home after the experiment.
| A．not until midnight did he go |
| B．until midnight that he didn't go |
| C．not until midnight that he went |
| D．until midnight when he didn't go |
Do you think the concert last weekend was of __________?
| A．much success |
| B．successful |
| C．very success |
| D．very successful |
The girl asked, "Could you help me solve the math problem?" "Of course, I can." he replied __________.
| A．without hesitation |
| B．without consideration |
| C．without discussion |
| D．without doubt |
It was __________ computer games that cost the boy a lot of time __________ he ought to have spent onhis lessons.
| A．played; that |
| B．playing; when |
| C．to have played; which |
| D．playing; / |
Only in this way __________ to make improvements.
| A．you can hope |
| B．can you hope |
| C．you did hope |
| D．did you hope |