She is a bit shy and __________ stand up and answer the teacher's questions.
| A．dares not | B．doesn't dare |
| C．dare not to | D．dares not to |
She started as an office junior, and ________ became the director of the whole company.
| A．in surprise |
| B．in return |
| C．in turn |
| D．in time |
Freezing winter is harmful ________ orange trees.
| A．for |
| B．to |
| C．of |
| D．at |
The villagers were often in _______ clashes with each other in those years before the agreement was reached.
| A．interesting |
| B．peaceful |
| C．violent |
| D．spiritual |
He exists ________ bread and water.
| A．on |
| B．in |
| C．by |
| D．with |
The boiler from excessive pressure of steam ________.
| A．exploded |
| B．burst |
| C．explode |
| D．erupt |