40. What’s the best title of the passage?

40. What’s the best title of the passage?

39. We should do the following when a tsunami is coming EXCEPT ________.

38. When a tsunami is coming， your family had better ________.

37. How many suggestions are mentioned in this passage?

36. When a tsunami comes， the waves will ________.

35. Which of the following should be the best way to solve the problem?

34. Which of the following is TRUE according to the passage?

33. “Junk food” and “junk sleep” are similar to each other because ________.

32. How many of the children sleep only 4 to 7 hours a day in the survey?

31. What does this passage mainly talk about?