Your ability has never been in doubt-- the question is ____ you are prepared to work hard.
| A．that | B．whether | C．if | D．how |
We need a chairman _____.
| A．for whom everyone has confidence | B．in whom everyone has confidence |
| C．who everyone has confidence of | D．whom everyone has confidence on |
_____ the calculation is right, scientists can never be sure that they have included all variables and modeled them accurately.
| A．Even if | B．As far as | C．If only | D．So long as |
In some countries, _____ is called “equality” doesn’t really mean equal rights for all people.
| A．which | B．what | C．that | D．one |
The mere fact _____ most people believe nuclear war would be madness doesn’t mean that it will not occur.
| A．what | B．which | C．that | D．why |
I don’t doubt _____ he is a brilliant scientist, but can he teach?
| A．whether | B．if | C．that | D．what |