The underlined part (划线部分)of “radio” is pronounced (发音) differentfrom ______.

(2008·山东，26)Occasions are quite rare ________ I have the time to spend a day with my kids

You play the piano so well. ________ do you take piano lessons—I go to piano lessons twice a week.

Linda is fifteen ____ old.

While crossing the street, an old man was knocked down by a car and badly __________.