It’s been over a year since I ______ back from the countryside.
| A．come | B．came | C．will come | D．had come |
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 |
By the time he ____ at the party, all the other guests ____ playing games.
| A．arrived; had begun | B．arrived; began |
| C．had arrived; began | D．had arrived; have begun |