阿摩線上測驗
604. It has been raining on and off these days, which ______ our plan for the camping.
(A) executes
(B) irritates
(C) extends
(D) frustrates
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統計： A(7), B(21), C(8), D(33), E(0) #1592814
統計： A(7), B(21), C(8), D(33), E(0) #1592814