— Can I pay the bill by check?
— Sorry, sir. But it's the management rules of our hotel that payment ______be made in cash.
| A．can | B．need | C．will | D．shall |
--- 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 |
When the holidays were drawing near, I asked my American friends ___ was the best way to travel in the United States.
| A．that | B．what | C．such | D．that |