苯中加入溴水后溴水层颜色变浅，这是由于
| A．发生了萃取作用 | B．溴挥发了 | C．发生了取代反应 | D．发生了加成反应 |
Now that we’ve discussed our problem, are people happy with the decisions _______? 
| A．taking | B．take | C．taken | D．to take |
Everybody was touched _____ words after they heard her moving story. 
| A．beyond | B．without | C．of | D．in |
One of the most important questions they had to consider was _____ of public health. 
| A．what | B．this |
C．that | D．which |
Encourage your children to try new things, but try not to ___ them too hard.
| A．draw | B．strike | C．rush | D．push |
The computer was used in teaching. As a result, not only__________, but students became more interested in the lessons. 
| A．saved was teachers’ energy | B．was teachers’ energy saved |
C．teachers’ energy was saved | D．was saved teachers’ energy |