—Chinese people are worried about the food they eat these days.
—Yes, the food safety is a serious in our country. We should try to solve it.
| A．subject | B．program | C．problem | D．opinion |
--- Look! We have a set of ______. Do you want________.
--- Really? Let me see.
| A．key; one | B．keys; it |
| C．keies; it | D．keys; one |
-Can you tell me? -I think it’s his.
| A．where he lives | B．where does he live |
| C．how old he is | D．whose the dictionary is |
The new bridge over the Jin Shui River last year, which makes it very easy to go to the city center.
| A．built | B．was built |
| C．has built | D．has been built |
She has studied in this schoolshe was seven years old.
| A．since | B．if | C．until | D．after |
Yingyinga piece of litter, and put it into the rubbish bag.
| A．picked up | B．threw away |
| C．looked for | D．handed in |