—Why does the river smell terrible
—Because large quantities of water________．
| A．have polluted | B．is being polluted |
| C．has been polluted | D．have been polluted |
—I’m afraid that she won’t come to help me as she promised
—Don’t worry. Nothing willher mind if she has up her mind
| A．turn, done | B．grow, give |
| C．make,changed | D．change,made |
The money collected should be made good usethe people in need.
| A．of helping | B．to help |
| C．of to help | D．to helping |
—Shall I give you a hand with this as you are so busy?
—Thank you.
| A．of course you can | B．If you like |
| C．it’s up to you | D．it couldn’t be better |
To their joy, the couplethe house and found the missing ring.
| A．got through | B．went through |
| C．Lived through | D．Looked through |
So absorbedin our talk that my brother took a wrong turn on the way to the airport.
| A．he wat | B．is he | C．was he | D．he is |