—_______ I borrow your English book?—Yes, of course you _______. 

—People find it hard to get across the river．—I think at least two bridges         over it．

According to the school rules, no student __________ go out of the school after eleven o’clock at night without the teacher’s permission.

—Can you tell me where to spend your winter holiday?—I’m not sure. We      go to Yangzhou.

--Why are your eyes so red? You _______ have slept well last night.---Yeah, I stayed up late writing a report.