$3. more$ => $the$ $more$
$4. culture$ => $cultures$
$5. to$ $keep$ => $and$ $keep$
$6. too$ => $either$
$7. involve$ => $involved$
$8. double$ => $doubled$
$9. factor$ => $factors$
$10. such$ $beautiful$ $day$ ⇒ $thiếu$ $mạo$ $từ$ $a$ $(such$ $a$ $beautiful$ $day)$