阿摩線上測驗
44 The patrol boat was sent to _____ illegal fishing activities near the boundary line.
(A) investigate
(B) monitor
(C) explore
(D) accuse
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統計： A(2), B(3), C(0), D(1), E(0) #3930887
統計： A(2), B(3), C(0), D(1), E(0) #3930887
