20. Mary’s shoes are expensive , but mine______ cheap.(A) is (B) am (C) are (D) was

問題詳情

20. Mary’s shoes are expensive , but mine______ cheap.
(A) is
(B) am
(C) are
(D) was

答案：C
難度：適中0.545455
統計：A(4),B(0),C(6),D(1),E(0)