1. _______________, I found the correct way finally.
经过反复试验, 我终于找到了正确的方法。
2. _______________ the plan is impracticable.
很明显这计划是行不通的。
3. The city’s population _______________ in the last few years.
在最近几年里这个城市的人口急剧增加。
4. As our ship _______________, we sent out flares to attract attention.
船开始下沉时, 我们发出闪光信号以唤起人们注意。
5. _______________ was blocked by a group of people.
院子的入口被一群人给堵住了。
