37. Which of the following does “Those” in the second paragraph refer to?
(A) Acorns.
(B) Leaves.
(C) Oak trees.
(D) Squirrels and jays.
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統計: A(1), B(0), C(0), D(1), E(0) #3363618
統計: A(1), B(0), C(0), D(1), E(0) #3363618