It is written clearly in the requirements that all passengers _______ check onto board thirty minutes before the plane takes off. 

-You must call them every week.　-Yes, I _____.

— I don’t mind telling you what I know. — You _____. I’m not asking you for it. 

We are all for your recommendation that the applicant ______.

 Mark     have hurried. After driving at top speed, he arrived half an hour early.