阿摩線上測驗
30. No sooner _____ than they started to put off the fire.
(A) the firefighters arrived
(B) did the firefighters have arrived
(C) the firefighters had arrived
(D) had the firefighters arrived
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統計： A(22), B(53), C(33), D(138), E(0) #2509988
統計： A(22), B(53), C(33), D(138), E(0) #2509988
