—What a beautiful necklace!
—Yes.But the necklace I __________ 80 dollars is made of glass.
| A．paid for | B．spent on | C．cost on | D．bought for |
It was to you and not to anyone else I lent the money.
| A．whom | B．why | C．that | D．whether |
The people, _______ had been damaged by the flood, were given help by the Red Cross.
| A．all their homes | B．all whose homes |
| C．all of their homes | D．all of whose homes |
This is a simple idea, but that is hard to put into practice.
| A．one | B．it | C．that | D．those |
– Who is the man standing there?
– If you know, his name is Mike.
| A．must | B．can | C．may | D．would |
One solution to this problem now is sustainable development.
| A．discussed | B．discussing |
| C．to be discussed | D．being discussed |