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)
【正确答案】：LENGTHEN
【题目解析】：
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？