题目内容：
根据材料，完成题。Bedwetting (尿床)
Millions of kids and teenagers from every part of the world wet the .bed every single night.
It's so common that there are probably other kids in your class who do it. Most kids don't tell their friends, so it's easy to feel kind of alone, like you might be the only one on the whole planet who wets the bed. (46) The fancy name for bedwetting is nocturnal enuresis (夜间遗尿 ). Enuresis runs in families. This means that if you urinate, or pee, while you are asleep, there's a good chance that a close relative also did it when he or she was a kid. (47)The most important thing to remember is that no one wets the bed on purpose. It doesn't mean that you're lazy or a slob. (48) For some reason, kids who wet the bed are not able to feel that their bladder is full and don't wake up to pee in the toilet. Sometimes a kid who wet the bed will have a realistic dream that he's in the bathroom peeing--only to wake up later and discover he's all wet. Many kids who wet the bed are very deep sleepers. (49)
Some kids who wet the bed do it every single night. Others wet some nights and are dry on other. A lot of kids say that they seem to be drier when they sleep at a friend's or a relative's house. (50) So the brain may be thinking, "Hey, you! Don't wet someone else's bed!"
This can help you stay dry even if you're not aware of it.
请在第__(46)__处填上正确答案。 A．The good news is that almost all kids who wet the bed eventually stop.
B．Trying to wake up someone who wets the bed is often like trying to wake a log--they just stay asleep.
C．It's something you can't help doing.
D．Just like you may have inherited your mom's blue eyes or your uncle's long legs, you probably inherited bedwetting, too.
E．That's because kids who are anxious about wetting the bed may not sleep much or only very lightly.
F．But you are not alone.
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