（年安徽省合肥市高三第三次教学质量检测）31. What the whole nation cares about most at present is ______ the rescue teams could find the missing plane.
| A．that | B．if | C．why | D．whether |
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 |
He found himselfby a crowd of excited people and to escape.
| A．surrounded; trying | B．surrounding; trying |
| C．surrounding; tried | D．surrounded; tried |