Winter is the time of the year the days are short and nights are long．
| A．on which | B．that | C．when | D．where |
Alice is one of the students who I am sure always best in most difficult situations.
| A．do her | B．do their | C．does her | D．does their |
is known to us all is that America is a developed country _________the First World.
| A．Which; belonged | B．As; belonging to |
| C．What; belonging to | D．It; belonging |
—Your mother isn’t a doctor, is she?
----___________. She teaches English in a middle school.
| A．Yes, she is | B．Yes, she isn’t | C．No, she isn’t | D．No, she is |
---Can I pay the bill by check?
---Sorry, sir. But it is the management rules of our hotel that paymentbe made in cash.
| A．shall | B．need | C．will | D．can |
___ that the government can lead them out of the financial crisis, people are optimistic about the future of the country.
| A．Convincing | B．Convinced | C．To convince | D．Having convinced |