题目内容：

阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

If a little humanlike robot begged you not to shut it off, would you show sympathy?

In an experiment 1. (intend) to find out how people treat robots when they act like humans, many participants struggled to power down a begging robot named Nao. 2. experiment was conducted by researchers in Germany, whose findings 3. (publish) in the scientific journal PLOSOne.

Nao, 4. was designed to beg about half of the participants not to switch it off but not the other half, was used 5. (measure) if his begging affected how people reacted.

In one previous experiment, researchers found that people preferred communicating with robots with complementary (互补的) personality characteristics to 6. (they) own. And since robots can exhibit social characteristics either 7. (speak) with human voices or taking the shape of a human body, the research suggests that people tend to react “8. (especial) social to them.”

The researchers said a possible 9. (explain) for their results was that people regarded Nao’s begging 10. “a sign of making its own decision.”