_______ is certain that practice makes perfect.
| A．What | B．It | C．There | D．Anything |
It is politely requested by the hotel manager that radios __________ after 11 o'clock at night.
| A．were not played |
| B．not be played |
| C．not to play |
| D．did not play |
-Do you know the great changes happening in the village?
-No, it's the first time I __________ here.
| A．was |
| B．came |
| C．have been |
| D．am coming |
Here is so heavy a stone that no man can __________ it up.
| A．put |
| B．bring |
| C．make |
| D．lift |
An artist who was recently traveling on a ferry to the southern island discovered __________ a long lost antique Greek vase.
| A．at random |
| B．by chance |
| C．in turn |
| D．on occasion |
If we leave right away，__________ we'll arrive on time.
| A．hopefully |
| B．curiously |
| C．occasionally |
| D．gradually |