 " The team analyzing the venues for the 2011 world cup said that it will need its report back date extended at least three weeks, possibly four.
<fluency>  " The team analyzing the venues for the 2011 world cup said that it will need its report back date extended at least three weeks, possibly four.
 " The team analyzing the venues for the 2011 world cup said that it will need its report-back date extended by at least three weeks, possibly four.