单项选择题

A．for themselves
B．by themselves
C．themselves
D．on their own
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单项选择题
A．hangs looseB．hangs looselyC．is hanging looseD．is hanging loosely
A．hangs loose
B．hangs loosely
C．is hanging loose
D．is hanging loosely
单项选择题
A．Over two billion quarts.B．Two million quarts.C．Two hundred million quarts.D．Nearly twenty billion quarts.
A．Over two billion quarts.
B．Two million quarts.
C．Two hundred million quarts.
D．Nearly twenty billion quarts.
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