Three fourths of the homework _________ today.
| A．has done | B．has been done | C．have done | D．have been done |
The boy decided to climb the mountains _______ he knew he would face many difficulties.
| A．as though | B．unless | C．even though | D．even |
China has been pushing the reform of public hospitals _______ all its citizens.
| A．in charge of | B．for the purpose of |
| C．in honor of | D．for the benefit of |
In many people’s opinion, that company, though relatively small, is pleasant _______.
| A．to deal with | B．dealing with |
| C．to be dealt with | D．dealt with |
Let’s not wait any longer, he might not _______ at all.
| A．turn over | B．turn up | C．turn on | D．turn down |
Special attention should be paid _______ our earth from _______.
| A．to protect; being polluted |
| B．to protecting; being polluted |
| C．to protect; polluting |
| D．to protecting; polluted |