問題詳情

19. The chemical used to contaminate the product _____ identified, according to the committee of investigation.
(A) no is yet
(B) not was yet
(C) has not yet been
(D) yet has no be

參考答案

答案：C
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用户評論

【Jason Hsieh】評論

The chemical used ☆☆ ...

【Po Chin Liao】評論

19. 據調查委員會稱，化學品尚未確定用於污染產品。 (A) 還沒有 (B) 還沒有 (C) 還沒有 (D) 還沒有19. The chemical used to contaminate the product _____ identified, according to the committee of investigation.(A) no is yet (B) not was yet (C) has not yet been (D) yet has no be