—Recent pressure at work may ______ his behavior.
It was on a cold winter evening _____ his father left home and was never back.
_____ were sent to hospital and _____ were buried.
-----What’s happening? I feel the house _____. -----An earthquake!
Great changes _____ in the city, and a lot of factories _____.
She likes playing _____ violin while her brother likes listening to _____ music.