(A) Human ancestors become predominantly right-handed when they began to use tools.
(B) It is difficult to interpret have significance of anthropological evidence concerning tool use.
(C) Human and their ancestors have been predominantly-right handed for over a million years.
(D) Human ancestors were more skilled at using both hands than modern humans.
32. The work "other" in line 9 refers to
(A) outline
(B) hand
(C) wall
(D) paint
33. What does the author say about Cro-Magnon paintings of hands
(A) Some are not very old.
(B) It is unusual to see such paintings.
(C) Many were made by children
(D) The artists were mostly
34. The word "implements" in line 14 is closest in meaning to
(A) tools
(B) designs
(C) examples
(D) pieces
35. when compared with implements "flaked" (line 14) it can by inferred that "implements flaked with a clockwise motion" (lines 13-14) are
(A) more common
(B) larger
(C) more sophisticated
(D) older
36. The word "clues" in line 17 in meaning to
(A) solutions
(B) details
(C) damage
(D) information