Somevisitedour school last Wednesday.

Tommy, you can never let others know what I have toldyou today.—Don’t worry. I will keep the ______.

It is human nature to think backto a golden age ______ one’s country was strong andrespected.

If better use is ____ of your spare time, you’ll make great, progress in it．[ ]

Great changes _______ in his hometown in the last twenty years.