Cindy shut the door heavily and burst into tears. No one in the office knew she was so angry.
| A．where |
| B．whether |
| C．that |
| D．why |
--- Do you know _____ Mr. Black’s address is.
--- He may live at No. 18 or No. 19 of Bridge Street. I'm not sure of _____.
| A．what; which | B．where; which | C．where ; what | D．what; where |
--- Do you know him?
--- Yes, but I can’t remember ________I met him for the first time.
A. where B. what C that D. if
They have not made any decision on ______ they are going to do to deal with the waste and control pollution.
| A．that | B．which | C．if | D．what |
Sometimes we are asked ______ we think the likely result of an action will be.
| A．that | B．what | C．which | D．whether |
He was lucky enough to sell his car for exactly ______.
| A．where he had paid for it | B．what he had paid for it |
| C．what he was paid for it | D．which he had paid for it |