Parent should take seriously their children’s requests for sunglasses _______ eye protection is necessary in sunny weather.
| A．unless | B．because | C．though | D．so |
Happy birthday, Alice! So you have________twentyone already.
| A．become |
| B．turned |
| C．grown |
| D．passed |
It is raining so hard. I think Tom is________to come to our party.
| A．impossible |
| B．possible |
| C．unlikely |
| D．uncertain |
We must________our daily expense________what we can afford. Or we'll not be able to make ends meet.
| A．spend; on |
| B．limit; to |
| C．take; to |
| D．use; for |
The Red Army men________25,000 li in the Long March.
| A．went |
| B．ran |
| C．walked |
| D．covered |
Learning to speak Chinese is a challenge, for it is often difficult for one foreigner to make himself easy________.
| A．understand |
| B．to understand |
| C．understood |
| D．understanding |