The lion is considered the king of the forest as it is a（n）______of courage and power.
| A．example | B．sign | C．mark | D．symbol |
We believe ________ we can find out the wonder drugs to H7N9 bird flu.
| A．when | B．whether |
| C．what | D．that |
The Frenchman pointed to the spoon and asked me ________ to call that in Chinese.
| A．whether | B．where |
| C．which | D．what |
We have realized ________ she is expecting is just an opportunity to test her ability.
| A．that | B．which |
| C．what | D．where |
—Haven't I seen you some place before?
—Yes. That's ________ I don't go there anymore.
| A．because | B．how |
| C．why | D．when |
His writing is so confusing that it's difficult to make out ________ he is trying to express.
| A．what is it | B．what is it that |
| C．what is that | D．what it is that |