12. The project advanced _____, as unpredictable funding delays and shifting team dynamics repeatedly interrupted the momentum that had briefly gathered.
(A) by fits and starts
(B) in dribs and drabs
(C) by leaps and bounds
(D) through tit for tat
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統計: A(21), B(28), C(23), D(5), E(0) #3421547
統計: A(21), B(28), C(23), D(5), E(0) #3421547