Is__book on the desk __useful one?A.the,anB.the,aC.a,theD.the,/

Is__book on the desk __useful one?A.the,anB.the,aC.a,theD.the,/ ( )the baseball on the desk? On the desk、英语是什么意思 what's on the desk? there_____any books on the desk. they're on the desk. at the desk和on the desk区别是什么 The flower on the desk is_____the teacher the------- [teacher ]books are on the desk the book is on the desk. the lamp is on the desk. The letter are on the desk. Whose is the bag on the desk? The book is on the desk. The book on the desk.is mine.on the.desk是定语吗?The book on the desk.is mine.on the.desk是定语吗? His backpack is on the on the desk对on the desk画线提问 iI found a book on the desk.（on the desk作状语）.on the desk作状语修饰谁 There is alarm clock on the desk.