阿摩線上測驗
4. For ________ reasons, the road by the river is often closed in bad weather.
(A) safety
(B) host
(C) health
(D) goal
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統計： A(361), B(35), C(52), D(9), E(0) #2555642
統計： A(361), B(35), C(52), D(9), E(0) #2555642
