阿摩線上測驗
34. The coffee beans _____ to a fine powder； then you pour boiled water onto the powder.
(A) grind
(B) ground
(C) are ground
(D) are grounded
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統計： A(27), B(64), C(297), D(310), E(0) #2772334
統計： A(27), B(64), C(297), D(310), E(0) #2772334
