单项选择题

Mary's bedroom is clean and clear, while her brother's bedroom is always ______.

A．at six and seven
B．at sixes and sevens
C．at sixth and seventh
D．at sixths and sevenths
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单项选择题
The party last month was really successful. So Mr. James, can we have ______ this month
A．another
B．one
C．it
D．other
单项选择题
______ he knew nothing about the matter.
A．He appears as if
B．It seems that
C．It appears as if
D．It seems as if
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