問題詳情

26. Bob was a pioneer in the industry, and much of what he did _____ now the standard today.
(A) is
(B) are
(C) am
(D) will be

參考答案

答案：A
難度：簡單0.792
書單：沒有書單，新增

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Bob was a pioneer in ☆☆☆ ...