47．[U]Unlike that of [/U]the Native Americans of British Columbia，the Plains，and the Southwest， those of Puget Sound lived in relatively small, autonomous villages.
（A） Unlike that of
（B） Unlike those of
（C） Unlike
（D） In contrast to that of
（E） Dissimilar to
C
如果是C 那后面的those of Puget Sound 是指什么 ?
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28． The mistakes children make in learning to speak tell linguists more about [U]how they learn language than [/U]the correct forms they use.
（A） how they learn language than
（B） how one learns language than
（C） how children learn language than do
（D） learning language than
（E） their language learning than do
Well, the questions are not as difficult as you think!
47.those of Puget Sound的 "those" 表示的是 the Native Americans。主要要比较的是：British Columbia, the Plains, and the Southwest 的 the Native Americans和 Puget Sound 的 Native Americans.
28.这里的do是替代tell。See, …….than ，是不是对得很正呢？而c中用children而不用they则是怕读者会误以为是 linguists。
Now, you got that?
