As the war in Libya goes on, an increasing number of people in the country from their homes and a safe place to stay.
| A．have been driven; are trying to find | B．has been driven; is trying to find |
| C．are being driven; have found | D．have been driven; have tried to find |
____ my opinion, American eat too much meat.
| A．For | B．To | C．In | D．Upon |
Steve and Jane are both very good ____ chemistry.
| A．at | B．for | C．in | D．on |
Do you often help your father ___ the farm work during the summer vacation?
| A．for | B．on | C．in | D．with |
Do you often help your father ___ the farm work during the summer vacation?
| A．for | B．on | C．in | D．with |
They sometimes go on working ____ the light of the moon.
| A．on | B．under | C．by | D．for |