问题
选择题
I saw some trees the leaves of _____ were black with disease.
A．that
B．which
C．it
D．what
答案
答案：B
B。the leaves of which 相当于 whose leaves。
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I saw some trees the leaves of _____ were black with disease.
A．that
B．which
C．it
D．what
答案：B
B。the leaves of which 相当于 whose leaves。