They are teachers and don’t realize _______ to start and run a company.
| A．what takes it | B．what they take |
| C．what takes them | D．what it takes |
They do have a different to the problem of overpopulation.
| A．solution | B．opinion | C．decision | D．conclusion |
If you want to book tickets for the 2012 Olympic Games, just call 00952012. It_______ be simpler.
| A．mustn’t | B．won’t | C．needn’t | D．couldn’t |
More and more people will fall in panic, as the expert predicts, if not _______ properly.
| A．comforting | B．comfort | C．comforted | D．being comforted |
The toughest thing about success is _______ you have to keep on being a success.
| A． that | B．when | C．what | D．why |
Cooking calls for _______ patience and time but it is _______ enjoyable experience.
| A．a; the | B．不填; an | C．the; an | D．a; 不填 |