4 Some people believe one day it will be possible to ________ rockets to the moon from their backyard.
(A) dismiss
(B) launch
(C) reward
(D) shovel
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統計: A(36), B(321), C(71), D(59), E(0) #3462103
統計: A(36), B(321), C(71), D(59), E(0) #3462103