Nelson Mandela is，__________ the greatest man of the 20th century，certainly among the most extraordinary leaders．
| A．if there | B．if any | C．if not | D．if so |
In his speech, Premier Wen Jiabao points out that creativity is ______it takes to keep a nation highly competitive .
| A．how | B．what | C．which | D．that |
The book is meant to ________needs it .
| A． who | B．whoever | C．whomever | D．whom |
The couple are spending their holiday on ______is described as one of the most beautiful islands .
| A．that | B．what | C．which | D．where |
Many people wrote articles on ___Liu Xiang had failed to compete in the event .
.
| A．why | B．what | C．who | D．that |
The government has announced that a modern city will be set up in ____is still a wasteland now .
| A．what | B．which | C．that | D．where |