Now many young people ________posting articles and photos onto the Wechat (微信) to share with their friends.
| A．are used for | B．are used to |
| C．used to | D．get used for |
—How do you study a test?
—I study working a group.
| A．for, in, with | B．for, by, at |
| C．for, by, with | D．of, in, by |
What the forest of the USA in the last 350 years?
| A．has happened to | B．is happened to |
| C．has happened at | D．is happening |
In order to eat safely, I think we make some food by ourselves instead of buying some．
| A．used to | B．prefer to |
| C．had better | D．are supposed to |
After hard training for a long time, Liu Xiang the records again．
| A．broke | B．achieved |
| C．invented | D．completed |
If all business goes paperless, at least one million tons of paper will be a year．
| A．used | B．saved |
| C．copied | D．offered |