50. What does the passage say we can do to help global warming?
(A) We can carry our own chopsticks.
(B) We can stop using chopsticks.
(C) We can stop cutting down trees.
(D) We can grow more trees at home
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統計: A(9), B(10), C(3), D(2), E(0) #706955
統計: A(9), B(10), C(3), D(2), E(0) #706955