APEX TOEFL GRAMMER UNIT 4
16.It is only in recent years that people have become aware -------- a clean environment means to us human beings
(A)that
(B)of that
(C)of what
(D) of which
(A:C
17.The formation of the universe can be explained by ------------ the "Big Bang" theory
(A)what scientists call
(B)that scientists call
(C)scientists call what
(D)which is called
(A:A
19.In 1857, Elizabeth Blackwell established the first hospital for women and children, which later became-----------is now the New York Infirmary for Women and Children
(A)what
(B)that
(C)where
(D)when
(A:A作者: 猫猫头 时间: 2003-5-28 19:57
16。be aware of固定搭配
该从句少了一个宾语成分，所以要加what
[此贴子已经被作者于2003-5-28 19:57:56编辑过]
作者: 猫猫头 时间: 2003-5-28 19:59
17。和16的结构差不多，，，看来这种类型的句子你不是恨熟悉。。。
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