---_______________ these pears?
---Twenty yuan.
| A．How many is | B．How many are |
| C．How much are | D．How much is |
Not only he but also his friend________to Yunnan every summer．
| A．travel |
| B．travels |
| C．traveled |
| D．traveling |
The new treatments________by Norman Bethune helped a number of soldiers．
| A．invent |
| B．invents |
| C．inventing |
| D．invented |
Today，computers are really helpful．They________everywhere．
| A．use |
| B．are used |
| C．used |
| D．were used |
A year has four seasons and it________twelve different star signs．
| A．divided into |
| B．is dividing into |
| C．dividing into |
| D．is divided into |
Battery-operated slippers are used________seeing in the dark．
| A．to |
| B．as |
| C．by |
| D．for |