单选题 .  You really have to get very old before you realize you're old. I'm in my middle fifties and I don't feel     1    yet. However, sometimes I look back at my childhood and     2    things to the way life is for     3    kids, some things have certainly changed.
    One area of change is     4    . Some changes have been improvements. Some changes, on the other hand, have been     5    .
    When I started school, most people didn't have a television; TV was just beginning to get     6    . My father decided to go all out and buy a 16-inch black and white Motorola     7    . I still remember watching the Lone Ranger save people, from the     8    guys on that awesome electronic machine. That was exciting!
    Now,     9    have larger pictures in full color. The pictures are clearer and the sound is much more     10    . The new high definition sets are made to rival     11    screens.
    The variety and quantity of program has     12    greatly. There are hundreds of channels and more shows than one person could ever watch. There are many fine entertainment and educational     13    . There's also a lot of garbage, stuff that most     14    don't want their kids exposed to. Overall, we have more choices, and that is good.
    I wonder what     15    will be like when today's kids are my age.1.