Growing old is something that nobody can understand until they experience it for themselves．I may not be "old" but I am certainly beginning to 36 it? turned 18 just over a week ago．I am now an adult．
As a child you 37 adults—or "grown-ups" as I used to call them—to always be in control．to know what is right and wrong． 38 as a teenager, I thought that when I reached 18 I would be far more 39 in many aspects of life．But now that I am 18, 1 know that is not true．
It is clear to me now that you do not 40 learning when you are 18．Every day you learn
something 41 , no matter what your age．However, I do understand when you become an adultyou have to 42 more responsibility．
Whereas before I seldom had to clean the dishes, set the table or help out around the house, now I do all of those．I have already 43 myself the nickname "housekeeper"．
I can even drive now, which is pretty 44 , because of the frequency of accidents．But that's not to say that 18 is not 45 to be．Not only can I drink alcohol, but I can also 46 ．In fact, being 18 has made me really interested in politics because it now means that I can change things on 47 Day．More and more of my friends want to become politicians, and it is great to
think that they can change things for the better．
| 小题1: | | A．dislike | B．feel | C．learn | D．love |
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| 小题2: | | A．expect | B．criticize | C．deny | D．know |
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| 小题4: | | A．comfortable | B．interested | C．assured | D．contented |
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| 小题5: | | A．continue | B．desire | C．stop | D．refuse |
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| 小题6: | | A．interested | B．unique | C．valuable | D．new |
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| 小题7: | | A．take on | B．put on | C．take up | D．put up |
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| 小题8: | | A．honored | B．chosen | C．earned | D．won |
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| 小题9: | | A．scary | B．amazing | C．fascinating | D．difficult |
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| 小题10: | | A．adventurous | B．tough | C．good | D．annoying |
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| 小题11: | | A．elect | B．vote | C．volunteer | D．involve |
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| 小题12: | | A．Labor | B．Independence | C．Christmas | D．Election |
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)．空间存在水平向左的匀强电场，电场强度为E．今始终用大小为
的水平力向右推A，A与Ｂ正碰后即以共同速度向右运动但不粘连，A、B不会因为运动或碰撞而改变原来的带电情况．求：
