—Will you join us in the party this Saturday evening?
—If I ____ ,I would ;but I will have left for Japan on business by then.
| A．am free | B．were to be free | C．will be free | D．would be free |
The kind-hearted couple decided to adopt the boy ____ parents had been killed in an accident.
| A．of whom | B．with whom | C．on whom | D．in whose |
As a lover of popular music, she enjoys listening to it _____ MP3.
| A． in | B．on | C．with | D．by |
Scientists have shown that there is a connection ____ cigarette smoking and certain diseases.
| A．with | B．between | C．to | D．for |
Though _____ my opinion, my mother didn’t say anything to show that she agreed with me.
| A．against | B．on | C．for | D．in |
The visit of the police was not connected ____ the lost child.
| A．by | B．with | C．to | D．in |