Don’t be hard________yourself．You should learn to relax yourself．
| A．to | B．on | C．with | D．of |
I found _____ necessary to save energy and protect the environment.
| A．that | B．this | C．it | D．one |
________ beautiful these postcards are! Where did you get them?
| A．What a | B．How a | C．How | D．What |
We can’t do well in examinations we study hard in school time.
| A．if | B．and | C．since | D．unless |
Her sonCoke, but now hemilk.
| A．used to drink, is used to drinking |
| B．used to drinking, drinks |
| C．is used to drinking, used to drink |
| D．is used to drink, is drinking |
Our countrya lot in the last few years.
| A．changes | B．changed |
| C．will change | D．has changed |