People like to live a life full of ________ and there are _______ of life styles available for people to choose in the modern world.
| A．a variety; a variety | B．varieties; varieties |
| C．a variety; varieties | D．variety; varieties |
Few people paid full attention to their health conditions __________ they were seriously ill.
| A．when | B．if | C．until | D．after |
The Chinese agricultural tax wasn't completely abolished __________2006，which reduced the farmers' burden greatly.
| A．until | B．before |
| C．since | D．after |
He complained __________ me __________ the food I had prepared.
| A．to; with | B．with; for |
| C．to; about | D．with; about |
You should try to be patient, Tracy. Learning a language is a slow __________. It takes time, you know.
| A．system | B．project |
| C．technology | D．process |
The little boy looked __________ at the __________ tiger.
| A．frightened; frightening | B．frightening; frightened |
| C．frightened; frightened | D．frightening; frightening |