37. How did William continue his education when he couldn't attend school?
(A) He went to a school that his parents could afford.
(B) He registered a course online.
(C) He visited the local library so he could read books.
(D) He created an online school for science education.

33. What is propylthiouracil?(A) a name of a drug(B) a kind of prop in theater(C) a type of tea(D) a type of coffee

34. What can we infer from the last paragraph?(A) The study is conclusive.(B) Self-report from the participants is not totally reliable.(C) Most participants prefer coffee.(D) Coffee is not a healthy drink.

35. How did the drought cause problems for William's village?(A) There was too much rain.(B) The school wasn't able to accept more students.(C) People couldn't rely on windmills for water anymore.(D) Families couldn't grow food in the dry conditions.

36. What does the title The Boy Who Harnessed the Wind: Creating Currents of Electricity and Hope suggest the book is about?(A) Instructions with diagrams and photos for people who want to build their own windmills(B) The story of a teenager who used wind power to create electricity and inspire other people(C) How to get electricity from the wind(D) A story of someone's life for teenagers who hope to become successful and earn a lot of money

38. Which of these is the best description of a diagram?(A) a text in another language(B) a pop up story book(C) a drawing of how a device works(D) a photo of a working machine

39. How did William get the parts and equipment he needed?(A) He bought them.(B) He made them.(C) He found them.(D) From charity.

40. How did William help others in his village?(A) He built new windmills for the others in his village.(B) He helped them make money.(C) He provided other people with electricity for their cell phones.(D) He let villagers use water from his second windmill.

41. What is the passage mostly about?(A) The cruelty of poverty in Africa.(B) The ways windmills can produce electrical power and supply water(C) The reasons why cell phones and radios don't work well in Malawi(D) How a teenage boy brought electricity and better health to his village

42. What is the best title for this article?(A) Social anxiety and social networks(B) Interpersonal relationship(C) Social Network Sites(D) How Facebook change people interact

43. What is the best title for part A?(A) The Benefits of Social Networks(B) Identifying Users and Uses(C) What is SNS?(D) Understanding Social Anxiety