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therearefifteendesksandthirtychairsforthestudents.改为肯定句和否定句
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There
are
fifteen
desks
and
thirty
chairs
for
the
students.(肯定句)
There
aren't
fifteen
desks or
yhirty
chairs
for the
students.(否定句)
友情提示一下,一般带有and的肯定句变为否定句时,要把and改成or!
are
fifteen
desks
and
thirty
chairs
for
the
students.(肯定句)
There
aren't
fifteen
desks or
yhirty
chairs
for the
students.(否定句)
友情提示一下,一般带有and的肯定句变为否定句时,要把and改成or!
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