Complete the following sentence with a (compound) word derived from the one(s) given in bracket.
Some people believe that smoking may （ ） one’s life-not only cancer, but also heart and lung diseases are related with smoking. (short)
【正确答案】：SHORTEN
【题目解析】：
may后面接动词，而且是动词原形，short的动词形式为shorten缩短，且符合句意。句意：有些人认为吸烟会缩短人的寿命——不仅是癌症，还有心肺疾病都与吸烟有关。
