Ⅰ.语法填空
(2016·东北三省四市教研联合体模拟)The choices people make can cause cancer. Not everyone who __1__ (use) tobacco products will get cancer, but the chance of getting certain __2__ (type) of cancer increases with tobacco use. The research __3__ (show) us that the constant misuse or overuse of alcohol may cause cancer of the mouth and throat as well recently.
