With more forests being destroyed，huge quantities of good earth ________ each year.
| A．is washing away | B．is being washed away |
| C．are washing away | D．are being washed away |
He opened the envelop, had it_____ and began to read it.
| A．unfolding | B．folding | C．unfolded | D．folded |
---Where did you ____ Japanese?
---While I was staying with some Japanese students.
| A．pick up | B．take up | C．make up | D．turn up |
I suggest those who would like to learn about the event_____ the report in yesterday’s newspaper, because the report has_____ the event thoroughly.
| A．read, included | B．reading, covered |
| C．read, covered | D．reading, included |
The increasing population in China will have a great _______ on the whole society.
| A． advantage | B．affect | C．difficulty | D．effect |
When ___our culture with those of other countries, we find ours is quite different.
| A．compared | B．comparing | C．to compare | D．being comparing |