________ cold, he covered his blanket, _____ only his arms _____ .
_______ being fun and good exercise, swimming is a very useful skill.
It was not until she got home __ Mary realized she had left her books in the classroom.
The train was ten minutes late, so I _______ have run all the way to the station.
. Jay Chou is _______ that teenagers are all crazy about him.
--- It’s reported that over 100,000 people lost their lives in Haiti earthquake on January 12th. --- Yes, _______ news came as _______ shock to me.