When ______ comes to research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals.
| A．that | B．it | C．this | D．what |
The mayor has offered a reward of $ 5000 to ______ who can capture the tiger alive or dead.
| A．both | B．others | C．anyone | D．another |
_________worries me the way he keeps changing his mind.
| A．This | B．That | C．What | D．It |
______wants to stay in a hotel has to pay their own way.
| A．Anyone | B．The one | C．Whoever | D．Who |
I like this jacket better than that one, but it costs almost three times______.
| A．as much | B．as many | C．so much | D．so many |
To know more about the British Museum, you can use the Internet or go to the library, or _______.
| A．neither | B．some | C．all | D．both |