—Can I pay the bill by check?
—Sorry，sir．But it is the management rule of our hotel that payment _______be paid in cash．
| A．will | B．can | C．should | D．shall |
Anyone, once _______ positive for H7N9 flu virus, will receive free medical treatment from our government.
| A．to be tested | B．being tested | C．tested | D．to test |
In much of the animal world, night is the time ______ for sleep—pure and simple.
| A．set aside | B．set down | C．set off | D．set up |
----Are you sure you won't come for a drink with us?
----_________, if you insist.
| A．Not at all | B．It depends | C．All right then | D．I don't care |
To her joy, Della earned first the trust of her students and then _____ of her colleagues.
| A．those | B．one | C．ones | D．that |
---Haven’tItoldyouthatyoushouldbehomeearlier?
---Yes,butI_____homeearlierthanIusuallydo.
| A．wascoming | B．willcome | C．came | D．hadcome |