14. Although I do not pretend to understand the science behind it, this is reassuring to me.
(A) adverb (B) adjective (C) article (D)compound adjective
15. Scientific information like this does not always hold my attention. (A) article (B)adjective (C) proper adjective (D) adverb
16. However, when a science article is about something that strongly appeals to me, such as snowflakes, I become interested. (A) article (B) adjective (C) proper adjective (D)adverb
17. I sometimes read the science section of the Sunday newspaper. (A) article (B) adjective (C) proper adjective (D) adverb

Question

14.  Although I do not pretend to understand the science behind it, this is reassuring to me. 
(A) adverb (B) adjective (C) article (D)compound adjective 
15.  Scientific information like this does not always hold my attention. (A) article (B)adjective (C) proper adjective (D) adverb
16.  However, when a science article is about something that strongly appeals to me, such as snowflakes, I become interested.  (A) article (B) adjective (C) proper adjective (D)adverb
17.  I sometimes read the science section of the Sunday newspaper. (A) article (B) adjective (C) proper adjective (D) adverb