—John I didn’t ask for the dictionary. Why on my desk?—Oh I put it there just now in c

问题补充：

—John, I didn’t ask for the dictionary. Why on my desk?

—Oh, I put it there just now in case you needed while writing your composition.

A. had it landed

B. does it land

C. will it land

D. has it landed

答案：

A. had it landed

B. does it land

C. will it land

(答案→)D. has it landed

解析：句意：上文，约翰，我没有要字典。为什么它会在我的桌子上？下文，我刚把它放在那儿的，万一你写作文时需要用呢。表示到说话时为止（或到现在为止）已经发生或完成了（不一定结束）的动作或状态，用现在完成时，选D。