_______ in thought, I didn’t notice what was happing.
| A．Having buried | B．Burying | C．Buried | D．To be buried |
Chinese President Hu Jintao called for an immediate cease-fire in Libya _____ an even worse humanitarian crisis in the country at the BRICS Summit in Hainan Province.
| A．to prevent | B．to have prevented | C．preventing | D．having prevented |
The president was so absorbed in his work that not a sound _____.
| A．did she dare to make | B．dared she to make |
| C．she dared make | D．she did dare to make |
A survey suggests that the royal wedding of Prince William and Kate Middleton _____ a great boost for British economy because a large number of visitors are expected to go.
| A．will be | B．has been | C．was | D．be |
The English in this story has been simplified to make it easier _______.
| A．to be understood | B．understood | C．understanding | D．to understand |
The new CRH train between Beijing and Shanghai ____ speed can reach about 380km/h will benefit ____ takes it.
| A．whose; whoever | B．which; whichever | C．whose; who | D．where; whoever |