—Why does Sara know so much about Angkor Watt?—She ______ have been there, or because of some other reasons.
A.
must
B.
oughtn't to
C.
may
D.
can't
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【简答题】Sacagawea was born sometime around 1790. She is best known for her role in helping the Lewis and Clark expedition (远征) . She and her husband were guides from the Great Plains to the Pacific Ocean and ...
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