SummarizationRead each of the following short paragraphs and complete the phrase or sentence that expresses the main idea of the paragraph. The first letter of the missing word is given before the blank.Paragraph 4.One way to test that idea would be to see if a pigeon’s sense of direction can be fooled by a magnet attached to its back With a sttong magnet close by, a magnetic compass can no longer tell about the earth’s weak magnetic field. 4. To p_______an idea.
【正确答案】：prove
【题目解析】：P181
