—It’snoeasytasktocatchaticketo

更新 2022-09-03
科目英语
题型单选题
难度中等
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— 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．will	D．can

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