Car lovers often organize field sports in our country. It is an activity that they ______ without the benefits of a car.
| A．would never attempt | B．will never attempt |
| C．would never have attempted | D．can never have attempted |
I really appreciate their ________ you ________ after me while I was ill.
| A．to have; looking | B．having; look |
| C．having; looking | D．to have; look |
—In my opinion, he is a hardworking man.
—________. He is always the first to come and the last to leave.
| A．Certainly not | B．I don’t think so |
| C．Of course not | D．I can’t agree more |
Since a sharp fall of stockmarket (股市) many people have ________ making other investments (投资).
| A．turned down | B．turned out | C．turned to | D．turned up |
Some students use their cellphone ________ as a tool of entertainment.
| A．most | B．mostly | C．almost | D．nearly |
There in Chongqing ________ great changes in climate this year.
| A．occurred | B．hit | C．existed | D．struck |