With many cities in China dreadfully blanketed by thick haze, the environmental problem is _____ Chinese people concern most nowadays.
| A．what | B．which | C．where | D．when |
12．Apart from knowledge, a good personality is__________every child should try to obtain during his or her growth.
| A．when | B．that | C．where | D．What |
11．---Did you call the airline to __________your flight booking?
---Yes, I did.
| A．confirm | B．break | C．guarantee | D．Submit |
10．No important progress was made in UN Climate Conference in Copenhagen as__________of the rich countries agreed to offer large amounts of money to fight global warming.
| A．nothing | B．none | C．neither | D．Both |
9．---Will you come over to Beijing for the may Day holiday?
---I’d like to, but my family__________the 2010 World Expo in Shanghai during the holiday.
| A．are visiting | B．are to visit | C．will be visiting | D．will visit |
8．The problem of the present world is that those who are imaginative have little experience
__________those who are experienced have weak imagination.
| A．unless | B．although | C．because | D．While |