阿摩線上測驗
1. Fallen rocks are impeding the progress of rescue workers.
(A) constructing
(B) destructing
(C) imposing
(D) obstructing
(E) proposing
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統計： A(0), B(8), C(3), D(92), E(4) #2069440
統計： A(0), B(8), C(3), D(92), E(4) #2069440
