.
I made a suggestion to the headmaster_____one of the young teachers_____to Australia for further education.
| A．that, is sent | B．which, sent | C．that, be sent | D．what, will go |
Could I speak to ________ is in charge of International Sales，please?
| A．anyone | B．someone |
| C．whoever | D．no matter who |
The traditional view is ________ we sleep because our brain is “programmed” to make us do so.
| A．when | B．why | C．whether | D．that |
The new technology will make ________possible to grow food with very little water.
| A．it | B．it is |
| C．that | D．that is |
________ matters most in learning English is enough practice.
| A．What | B．Why | C．Where | D．Which |
Before a problem can be solved, it must be obvious ________the problem itself is.(2011·湖南)
| A．what | B．that | C．which | D．why |