They would not allow him ________ across the enemy line.
| A．to risk going | B．risking to go | C．for risk to go世间 | D．risk going |
．____is known to us is that China has won five gold medals in the 2010 Winter Olympic Games.
| A．It | B．As | C．What | D．That |
Medicine should be placed ____children's reach to make sure of safety．
| A．with | B．within | C．out | D．beyond |
．—I finished all my work today．
—If____, you can help others with their work．
| A．so | B．not | C．possible | D．ever |
I would rather you ____with us yesterday, but you left．
| A．had stayed? | B．stay | C．stayed | D．have stayed |
．There has been a（n）____of sadness in the small town since a boy was drowned in the river．
| A．scene | B．atmosphere |
| C．condition | D．appearance |