Your floor is dirty. It needs _______.
| A．clean | B．to clean | C．cleaning | D．cleaned |
Silk from China found its way to India, the Middle East and Rome，__________ spices and glass, which were not known to China.
| A．in exchange for | B．in return | C．in change for | D．in need of |
The three main islands __________ this country.
| A．are made up of | B．are made in | C．are made of | D．make up |
Parents need to be __________ in their children's education in many ways.
| A．connected | B．lost | C．involved | D．concerning |
Can you tell me who can best __________ the problem?
| A．do | B．handle | C．deal | D．hang |
The boy preferred __________at home to __________ outside.
| A．staying； playing |
| B．staying； play |
| C．to stay ； play |
| D．to stay ； playing |