Mother was in the kitchen ______ lunch while I was ______ the coming exam.
| A．prepared; prepared for | B．preparing; preparing for |
| C．prepared for; prepared | D．preparing for; preparing |
China recently tightened its waters controls near the Huangyan Island to prevent Chinese fishing boats fromin the South China Sea.
| A． | attacking | B． | having attacked | C． | being attacked | D． | having been attacked |
Anyone, whether he is an official or a bus driver, should be（）respected.
| A． | especially | B． | equally | C． | naturally . | D． | normally |
-Why do you choose to work in an international travel agency?
-Well, you know, English is my. So it is my best choice.
| A． | strength | B． | talent | C． | ability | D． | skill |
一 When did the computer crash?
一 This morning, while Ithe reading materials downloaded from some websites.
| A．have sorted | B．was sorting | C．am sorting | D．had sorted |
The air quality in the city, ________is shown in the report, has improved over the past two months.
| A．that | B．it | C．as | D．what |