_____ the rapid development of agriculture in China, the output of grain, fruit, vegetables, and milk has sharply increased, which contributes to the drop in their prices.
| A．As | B．For | C．With | D．While |
Presently, the old tend to take up some new hobbies ___________they can find a brand new definition of life.
| A．that | B．where | C．which | D．when |
The newcomer’s ___________ nature accounts for his making a large circle of friends soon after his arrival.
| A．considerate | B．energetic | C．easygoing | D．aggressive |
---Have you watched the live Oscar Award presentation?
---I ___________it online later because of an important date.
| A．watched | B．had watched | C．was watching | D．have watched |
___________2010 Shanghai World Expo will launch ___________underground network of 700 kilometers of pipes to provide natural hearting and cooling.
| A．The; an | B．The; the | C．不填；the | D．不填；an |
---What beautiful exhibits! Do you mind my taking pictures of them?
--- ______________. Please go ahead.
| A．No way | B．No, better not | C．Never mind | D．Not at all |