句型 Where is...? It's in/on/under... — 英语选择题
题目
桌子在房间里，书在桌子上，铅笔在桌子下面。选出询问书的位置并正确回答的一项。A. Where is the book? It's under the desk. B. Where is the book? It's on the desk. C. Where is the book? It's in the desk. D. Where is the pencil? It's on the desk.