All the girls swam in the lake except two, who _____ halfway.
| A．gave off | B．gave up | C．gave away | D．gave out |
(2013·安徽，21)From space, the earth looks blue. This is ________ about seventyone percent of its surface is covered by water.
| A．why | B．how |
| C．because | D．whether |
________ makes the book so extraordinary is the creative imagination of the writer.
| A．That | B．What |
| C．Who | D．Which |
Do not let any failures discourage you, for you can never tell ________ close you may be to victory.
| A．how | B．that |
| C．which | D．where |
(2013·天津，15)________ I want to tell you is the deep love and respect I have for my parents.
| A．That | B．Which |
| C．Whether | D．What |
Police have found ________ appears to be the lost ancient statue.
| A．which | B．where |
| C．how | D．what |