【简答题】Task 3 Listen and fill in the blanks with appropriate words. Friends boyfriend and girlfriend strangers colleagu e cl assmate parents Conversation 1 Martha is Jim's(1) __________ The two people talki...
【简答题】Passage 1 Questions 1 to 5 are based on the following passage. According to Daniel Lieberman, a professor of human evolutionary biology at Harvard University, “People have been running barefoot for mi...