．Friends are like leaves, __________everywhere, but true friends are like diamonds, precious and rare.
| A．to find | B．finding | C．being found | D．found |
Could I speak to__________ is in charge of International Sales ,please?
| A．anyone | B．someone | C．whoever | D．nomatter 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 |
______ he referred to in his article was unknown to the general reader.
| A．That | B．What | C．Whether | D．Where |
____ matters most in learning English is enough practice.
| A．What | B．Why | C．Where | D．Which |
Some children want to challenge themselves by learning a language different from ______ their parents speak at home.
| A．what | B．that | C．which | D．One |