Many facts proved that long before Columbus ________ America, Chinese had visited it.
| A．noticed | B．uncovered | C．discovered | D．arrived |
One reason for her preference for city life is __________ she can have easy access to places like shops and restaurants.
| A．that |
| B．how |
| C．what |
| D．why |
I__________ you an apology for what I said this morning. Anyway, I meant no offence.
| A．owe |
| B．make |
| C．demand |
| D．Accept |
An idea suddenly came to J. K. Rowling __________ she could write a book about people living in the magic world.
| A．if |
| B．when |
| C．that |
| D．which |
The question came up at the meeting __________ we had enough money for our research.
| A．whether |
| B．that |
| C．which |
| D．what |
A growing anxiety is disturbing the public __________ the economy will continuously decline.
| A．which |
| B．that |
| C．why |
| D．whether |