Only when you stay with ____ local people for a period of time will you have ____ better understanding of life there.

－Do you have        sweet tooth?
－Yes, but I’m on        diet now.

The Mid-Autumn Festival is ________ special holiday for most Chinese when ________ whole family will get together.

I often have conversation with John over _____ phone, but keep in touch with Tom by writing _____ letters.

—The play is _____ hit. 
—Let’s go to _____ theatre to enjoy it.

   It’ s  wise choice to use a four wheel drive car on    snowy day.
A. a； a B, the； /  C. /; a D. the； /the

Many lifestyle patterns do such           great harm to health that they actually speed up
         weakening of the human body.

_______ meeting held last night was _________ great success.

．一Daddy，look! Why_______ rainbow is like a bow?
一Oh，it is apologizing to ________angry sky．

Most scientists seem to agree that ______ certain limit should be set on _______ consumption of cars to ease air pollution.