Jack went to college last year, _________ to return home until he achieves his goal.

In those days, our ________ concern was to provide people who were stopped by the snow storm with food and health care.

People who often stay up late are _________ to suffer from heart attacks than those  who are not.

I’m very ________ about expressing my opinions in public in case I may make mistakes.

Expected noises are usually more _____ than unexpected ones of the like magnitude.