After dinner they talked about the persons and things _______ they still remembered.
| A．which | B．that | C．who | D．what |
The little boy looked __________ at the __________ tiger.
| A．frightened; frightening | B．frightening; frightened |
| C．frightened; frightened | D．frightening; frightening |
I don't think __________ possible to master a foreign language without much memory work.
| A．this | B．that |
| C．he | D．it |
Sandy could do nothing but __________ to his teacher that he was wrong.
| A．admit | B．admitted |
| C．admitting | D．to admit |
Will you be able to attend the lecture __________ next week?
A givingB. given
C. to be givenD. being given
The government must take measures to prevent the river __________.
| A．polluted | B．polluting |
| C．from polluted | D．being polluted |