43
(A) genetic
(B) absurd
(C) balding
(D) tactful

39 According to the passage, what will cause a more severe corrosion in plumbing materials that contain lead? (A) High mineral content. (B) High acidity in water. (C) High temperatures. (D) Highly toxic chemicals.

40 According to the passage, which of the following is NOT true? (A) Water service line replacement could increase the exposure to lead while the work is proceeding. (B) Medical and public health experts agree that there is no safe level of lead in the human body. (C) Water sampling results can be different depending on the time of day, season, and method of sampling. (D) The most important thing is to look for a certified laboratory to identify lead contamination. 

41 (A) ancestors (B) endorsers (C) ministers (D) violators

42 (A) rose (B) rises (C) arise (D) risen

44 (A) existed (B) hunched (C) tokened (D) wielded

45 (A) weakening (B) inducting (C) hovering (D) lavishing 

46 According to the passage, what do foreign laborers, old citizens who live alone, and people with disabilities have in common? (A) They are in large numbers. (B) They do not enjoy social benefits. (C) They suffer from discrimination. (D) They are often in the news.

47 According to the passage, what can the author’s job be? (A) A book writer. (B) A shop owner. (C) A game developer. (D) An environment official.

48 Which of the following is the best title for this passage? (A) Love All People in Suffering (B) Be Kind to Stray Animals (C) Live a Life in a Safe Way (D) Build a Cat-caring Shelter

49 Which of the following is closest in meaning to “permeating” in the context of this passage? (A) spreading (B) claiming (C) inhabiting (D) outstanding