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 |
Many nations have promised to reduce greenhouse gas emissions, but are falling short of the _______ reduction of 25 to 40 percent of 1990 levels.
| A．target | B．option | C．profit | D．refund |
Office _______ is just something that he plays at; the one thing that really interests him is golf.
| A．ambition | B．enterprise | C．routine | D．Framework |
The manager looked around the meeting room and said,“_____ everybody has arrived, let’s begin our meeting.”
| A．As if | B．Only if | C．Now that | D．In case |
----- Aren’t you tired of practising playing the piano day after day?
------ _______, I enjoy every minute of it.
| A．On the other hand | B．On the contrary | C．Now and then | D．For one thing |
Success in life doesn’t happen _____. It’s the result of devoting your time and energy to what you’ve set out to do.
| A．by force | B．by design | C．by accident | D．by choice |