Complete the following sentence

Complete the following sentence with a (compound) word derived from the one(s) given in bracket.

Could you （ ） your article out by adding a few examples? (length)

本题考查常见名词的动词形式。

由could可知，空缺处应填动词原形。length的动词形式是lengthen意为“使延长；加长”。

句意：你能加几个例子把文章加长吗？