____ 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

---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．need         C．will           D．can

—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

        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

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

“How could you lose so much money?” Charlie asked his wife, eyeing her angrily from    ________the kitchen table．

A．at           B．across            C．through            D．on

―Where did you get to know her?

―It was on the farm_________we both once worked in the 1970s．

A．that        B．which           C．when          D．where

Can you imagine what difficulty people had this year__________against the severe natural disasters?

A．fighting          B．to fight           C．fought          D．fight

Attention, coffee lovers! We have for you, the best coffee machine _____ invented．

A．ever         B．already            C．even        D．nowadays

－What are you busy with ?

－The conference _______ in our city next week．

A．held         B．will be held          C．be holding           D．to be held