—It's no easy task to catch a ticket on a website that receives 1 billion clicks daily.
—I can't agree with you more. There be errors for every single step.
A. should
B. must
C. can
D. will
网友回答
A. should
B. must
(答案→)C. can
D. will
解析：选C 考查情态动词表示推测。句意：“在每天被点击十亿次的网站上抢到一张票不是容易的事。”“我非常同意你的说法。每一步都有可能出错。”can用于肯定句表示理论上的可能，即用来说明主语的特征。