------ Can I pay the bill by check ?
------ Sorry, sir．But it is the management rules of our hotel that payment _______ be made in cash．
| A．shall | B．can | C．will | D．may |
If we leave right away,____ we’ll arrive on time.
| A．hopefully | B．curiously | C．occasionally | D．gradually |
The children,____ had played the whole day long, were worn out.
| A．all of what | B．all of which | C．all of them | D．all of whom |
As the world’s population continues to grow, the ___of food becomes more and more of a concern.
| A．worth | B．supply | C．package | D．list |
Imyself more－it was a perfect day.
| A． | shouldn't have enjoyed | B． | needn't have enjoyed |
| C． | wouldn't have enjoyed | D． | couldn't have enjoyed |
Mary worked here as a ____ secretary and ended up getting a full-time job with the company.
| A．pessimistic | B．temporary | C．previous | D．cautious |