The recent increase in UFO sightings in the United States has alarmed many people, to cause them to speculate about the existence of extra-terrestrials here on Earth and prompting fear of a government cover-up.
-
Ato cause them to speculate about the existence of extra-terrestrials here on Earth and prompting
分析该选项
-
Bto cause them to speculate about the existence of extra-terrestrials here on Earth and to prompt
分析该选项
-
Ccausing them to speculate about the existence of extra-terrestrials here on Earth and prompting
分析该选项
-
Dcausing speculation about the existence of extra-terrestrials here on Earth and to prompt to
分析该选项
-
Ecause speculation about the existence of extra-terrestrials here on Earth and prompting
分析该选项
显示答案
正确答案: C