—TheBellsexpressedtheideatomakepeacewithus.—Idoubt

問題詳情：

—The Bells expressed the idea to make peace with us.

—I doubt _______ they are honest; sometimes they lie.

A. what                    B. which             C. that                    D. whether

【回答】

D

知識點：連詞

題型：選擇題