I wrote him a letter to show my______ of his thoughtfulness.
| A．achievement | B．agreement | C．attention | D．appreciation |
-How long do you think it will be __________ the Two Sessions （两会）in Beijing come to an end?
-Don't you know they were over on March，17th ？
| A．before | B．since |
| C．until | D．after |
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 |