問題詳情

7. The company had about 20 notebook computers but only one-third _______ used regularly. Now we have 60 working all day long.
(A) is
(B) are
(C) was
(D) were

參考答案

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