问题
选择题
In some western countries, ________ are called “public schools” are not owned by the public.
A．which
B．as
C．what
D．that
答案
C
题意：在一些西方国家所谓的“公立学校”并不是公众所有。本题考查what引导主语从句，并在主语从句中作主语。
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