Millions of people around the world suffer from a painful addiction to biting their nails，which can be harder________than smoking cigarettes．
| A．to be quitted | B．to quit |
| C．to have quitted | D．to quitting |
He shouldn’t have been soabout food, otherwise he would be healthier now.
| A．special | B．curious | C．anxious | D．particular |
on the MSN, some people often use “88” for “goodbye”.
| A．While chat | B．While chatting | C．While chatted | D．While to chat |
To our surprise, the student considered_____ in the exam should win an award.
| A．being cheated | B．having been cheated |
| C．to have cheated | D．to have been cheated |
That poor man with her two children _____ in a street corner.
| A．was seen to beg | B．were seen begging | C．was seen begging | D．were seen to beg |
--Do you feel like _____ there or shall we take a bus?
---I’d like to walk, but since there isn’t much time left, I’d rather we_____ a taxi.
| A．walking; hire | B．to walk; hire | C．to walk; hired | D．walking; hired |