单项选择题

______ of the river has been polluted.

A．Second-three
B．Two-three
C．Two-third
D．Two-thirds
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单项选择题
Kate and her sister went on holiday with a cousin of______.
A．her
B．their
C．hers
D．theirs
单项选择题
—What did the teacher tell you to do —He told me to write______ report.
A．an one-thousands-words
B．a one-thousands
C．a one-thousand-word
D．an one-thousand-word
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