He said that not until the heavy snow blocked the express _________ how serious the weather was.
| A.did the tourists realize | B.the tourists realized |
| C.the tourists did realize | D.didn’t the tourists realize |
We suggest that they provide an effective warning system to ________ many of the disasters ________.
| A.keep; happening |
| B.prevent; from happening |
| C.stop; from being happened |
| D.prevent; from being happened |
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 |