(2012年安徽卷，25)You can change your job，you can move house，but friendship is meant to be ________life.
| A．of |
| B．on |
| C．to |
| D．for |
The speech that Mr.Smith made today gave a strong ______ on the students.
| A．expression | B．expectation | C．reputation | D．impression |
In peace, too , the Red Cross is expected to send help _________there is human suffering.
| A．whoever | B．however | C．whatever | D．wherever |
We won’t keep winning games ________ we keep playing well.
| A．because | B．unless | C．when | D．while |
I’m certain David’s told you his business troubles. _________, it’s no secret that he owes a lot of money to the bank.
| A．However | B．Anyway | C．Therefore | D．Though |
John received an invitation to dinner, and with his work ____, he gladly accepted it.
| A．finished | B．finishing | C．having finished | D．was finished |