Today, housework has been made much easier by electrical _____.

Although dragon doesn’t exist, we still take it as a _______ of our nation. 

As a heavy smoker , he finds it hard to get rid of the habit, which has a bad _____on his health.

 Though bought several years ago, the computer is still in good ____. 

A box of _____ is a most welcome gift for one’s lover on Valentine’s Day.