33.I had been working on math for the whole afternoon and the numbers before my eyes.(A)swim (B).swu

問題詳情

33.I had been working on math for the whole afternoon and the numbers before my eyes.
(A)swim
(B).swum
(C)swam
(D) had swum

答案：C
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)