問題詳情

11. Nemo: _____ there a lot of fish in the river before? Doris: Yes, but there _____ only trash now.
(A) Was; is
(B) Did; has
(C) Were; is
(D) Was; are

參考答案

答案:C
難度:計算中-1
書單:沒有書單,新增

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