Usually a meteorological observatory (气象台) _____ air quality in urban areas from one to five: excellent, fairly good, slightly polluted, poor, and dangerous.
| A．identifies | B．purifies | C．classifies | D．clarifies |
The wedding party is to be held on May 18,_____ is, ten days_____ today.
| A．which; from | B．that;except | C．that;from | D．as;since |
---Since you can't find a better job, why don't you stick to the present one?
---Well,_____.
| A．I believe not | B．I don't care |
| C．Never mind | D．I might as well |
He ______. It's a shame my mobile phone was power-off.
| A．ought to call me | B．could have called me |
| C．may be calling me | D．might call me |
We' ve published large quantities of books. This year___ we've published three million.
| A．only | B．just | C．alone | D．merely |
.--- Haven't I told you that I like the beef well done?
---Yes, but I _____ it longer than I usually do.
| A．was cooking | B．will cook | C．cooked | D．had cooked |