12. To my surprise, some of my students_____ stay up to study for the coming examination
---I am going to Spain for my holidays tomorrow. --- ________.
She missed the plane, ________driving very fast to the airport.
She pretended _______when I came in.
When he came to, he found himself ____a chair, with his hands_____back..
Rather than _____on a crowded bus, he always prefers _____a bicycle.