问题
选择题
Many people claim that they have seen UFO with their own eyes, _____ I personally doubt.
A．that
B．which
C．when
D．where
答案
答案：B
定语从句考查题。先行词为整个主句所以关系词只能用which而且关系词在从句中作宾语。 句意：许多人声称他们看到了UFO我对此表示怀疑。
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