问题
选择题
It was on this vast grassland in Tibet________we saw those beautiful and magic Tibetan antelopes in
2008 . [ ]
A. when
B. that
C. where
D. on which
答案
答案：B
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It was on this vast grassland in Tibet________we saw those beautiful and magic Tibetan antelopes in
2008 . [ ]
A. when
B. that
C. where
D. on which
答案：B