阅读下面材料, 在空白处填入适当的内容(1个单词)或括号内单词的正确形式。Rescuers free elephant from a dangerous pit (深坑)
A wild Asian elephant accidentally fell into a deep mud hole in the ground on March 13 while playing with other members of a herd in a forest in Mengla county, Southwest China’s Yunnan province.
The police 【小题1】 arrived at the scene saw the elephant struggling to get out, with another elephant 【小题2】 (try) to pull it out using its trunk (象鼻) and legs. 【小题3】, as the pit was deep and the surface was smooth and wet, the trapped elephant 【小题4】 (stick). After observing the surroundings and considering all of the 【小题5】(possibility), rescuers determined the best chance of freeing the animal 【小题6】 (be) through the use of an excavator (挖掘机).
The driver of the excavator 【小题7】 (careful) operated the machine so as not to annoy the herd. After 10 minutes, 【小题8】 exit to get out was formed for the elephant to finally make 【小题9】 (it) escape. While walking away, the animal waved its trunk 【小题10】 the excavator as if to give thanks.
The 2.5-ton elephant then returned to the nature reserve with the rest of its herd.