9. This building is the ____ in the world. There is no building in the world that is taller than it.
(A)tall
(B) shortest
(C) short
(D)tallest
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統計: A(15), B(16), C(10), D(454), E(0) #2077778
統計: A(15), B(16), C(10), D(454), E(0) #2077778