With more forests being destroyed, huge quantities of good earth _______ each year.
A. is washing away B. is being washed away
C. are being washed away D. are washing away
This event not only raised _______ of world hunger, but also raised lots of money to help starving children.
A. information B. knowledge C. instruction D. awareness
____________ you may be right, I can’t altogether agree.
A. While B. As C. If D. Since
The emergency required that all the tasks _____ at least two days ahead of time．
A．to complete B．should complete C．be completed Dshould have been completed
When first ______to Britain, tea was not so popular like today
. A. introducing B. introduced C. being introduced. D. introduce
---It’s the second time that I ___ to Shanghai.
---What great changes! It’s ten years since I _____ it last time.
A. have been, left B. had been, left C. am, had left D. come, had left
