What is the main idea of the passage?

(单选题)Researchers claim ______ the first proof that getting a regu (单选题)After leaving his home as a young man to seek his ______ in (单选题)—Next week I will go to a job interview. Will you give me so (单选题)I love the weekend, because I ______ get up early on Saturda (单选题)— How about going to the movie’s tonight?—______. We can see (单选题)Lily does very well in her studies, especially in physics an (单选题)_______ terrible, the medicine was thrown away by the child. (单选题)The main purpose of writing the passage is ______. (单选题)The reason why Donald Trump repeatedly criticized Amazon Go (单选题)What can we infer from the third paragraph?