单项选择题


A．USA
B．UN
C．PRC
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单项选择题
Mother left me a note when she went shopping this morning ______ I know where she went.
A．so that
B．in order
C．since
单项选择题
A．faster and fasterB．fast and fastC．fastest and fastest
A．faster and faster
B．fast and fast
C．fastest and fastest
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