I would appreciate it very much if you could send me a few details or specifics about what you need assistance with. Could you please provide more information so I can better assist you?

I would appreciate _______ very much if you could send me a few copies of the mechanic design of your new model.

A.it

B.that

C.this

D.you

A

解析

本题考查appreciate的用法。句意：如果你能将这你新模型的技术设计的复印册寄给我几份，我我会非常感激你的。句型Iwouldappreciateitif... 表示“如果……,我会非常感激”。