60.
(A) extant
(B) extent
(C) extenuation
(D) extension

56. (A) for (B) from (C) to (D) by

57. (A) which (B) what (C) of which (D) that

58. (A) caused (B) deduced (C) forced (D) prompted

59. (A) which affecting (B) are affecting (C) are affected (D) affecting

61. (A) for (B) by (C) to (D) in

62. (A) in interest (B) of interest (C) interested (D) interested in

63. (A) engages in (B) engages (C) is engaged with (D) is engaged to

64. What is the main theme of this passage? (A) Keeping pets at home is a way to cure children’s allergies. (B) Pets could be the main source of household allergens. (C) Living with pets may protect young children from allergies. (D) Parents should get rid of pets to prevent children’s allergies.

65. Why is the research important? (A) It conducts longitudinal follow-ups on children until they were 18. (B) It identifies pet-related bacteria from household pets that cause asthma. (C) It confirms that exposures to pets strengthen children’s immune system. (D) It concludes that dust, not pets, provokes allergies in the infancy.

66. Which of the following argument is suggested in the research? (A) Teenagers owning cats or dogs are less likely to develop allergies to those animals later in life. (B) A child who has been living with pets anytime after one year old has a significant lower risk of having allergies. (C) There is a certain period of time in which exposure to pets may have a protective effect against allergies. (D) Sending away pets is an effective way to prevent children’s allergies.