[单项选择]EMERGENCY EXIT ONLY A. You only have to get in. B. You have to go out that way even if there is no emergency. C. You aren't allowed to go out that way except emergency.

You really have to get very old before you realize you’re old. I’m in my middle fifties and I don’t feel old yet. However, sometimes I look back at my childhood and (21) things to the way life is for (22) kids. Some things have certainly changed.
One area of change is television. Some changes have been improvements. Some changes, on the other hand, have been (23) .
When I started school, most people didn’t have a television; TV was just beginning to get (24) . My father decided to go all out and buy a 16 inch black and white Motorola set, I still remember watching the Lone Ranger save people from the (25) guys on that awesome electronic machine. That was exciting!
Now, (26) have larger pictures in full color. The pictures are clearer and the sound is much more realistic. The new high definition sets are made to rival (27) screens.
The variety and quantity of programming hasA. movies
B. food
C. cars
D. television