I really don’t know how to thank you , but for your help, I ______ my lost necklace．
| A．couldn’t have found | B．mustn’t have found |
| C．couldn’t find | D．wouldn’t find |
In old days, books for blind people used paper ____ against metal wire to form letters.
| A．to press | B．pressing | C．pressed | D．which pressed |
One winter day ____, he saw the tracks of animals in the snow and observed that the appearance of each one was different.
| A．while he hunting | B．while hunting |
| C．while he hunt | D．while hunted |
People from the West like to use these words in cases ____ some people in Asia may not think it necessary.
| A．which | B．that | C．what | D．Where |
The manager would like to offer the position to ____ is fit for it.
| A．who | B．whomever | C．whoever | D．Whichever |
I am sure ____ he did is wise.
| A．that | B．about that | C．of that | D．that what |