問題詳情

28. Not only ________among the most popular household pets, but they are also among the most intelligent.
(A) dogs are
(B) are dogs
(C) when dogs
(D) they are dogs

參考答案

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