（2013·新课标Ⅱ卷)Four and half hours of discussion took us up to midnight,and break for cheese,chocolate and tea with sugar.
| A．a;a | B．the; the | C．不填；the | D．a;不填 |
Only after Helen moved to Australia ______ how important she was to me .
| A．I had realized | B．had I realized | C．I did realize | D．did I realize |
Spelling Bee is a contest competitors, usually children, are asked to spell as many words as possible.
| A．which | B．where | C．what | D．When |
We began to open to the outside world in the ate 1970s. , there have been great changes in the country.
| A．As a result of | B．As a result | C．First of a11 | D．After all |
Sun Yang, a young Chinese swimming talent, several gold medals before the 2012 London Olympics.
| A．won | B．has won | C．had won | D．were to win |
In hot summer, milk quickly turns sour it is refrigerated.
| A．while | B．if | C．until | D．unless |