阿摩線上測驗
11. After many years of hard work, he finally got his idea_______.
(A) off the ground
(B) in a minute
(C) to no avail
(D) on the wane
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統計： A(137), B(17), C(16), D(61), E(0) #2336801
統計： A(137), B(17), C(16), D(61), E(0) #2336801
