—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.

---Who’s the woman in red ? Is it Mrs. White?---It          be her. She went to Beijing yesterday.

He __________ be at home now because I saw him in the office just now.

(2014·江苏两校联考)According to the agreement，you________be fined if you fail to meet the goal.

– May I take the magazine out of the reading room?-- No, you can’t. You            read it here. It’s the rule.