-THE OFFSPRING OF A PAIR OF BIRDS LEAVE THE NEST WHEN THEY A...

1926 CAU HOI TN ON THI TSDH VA TN THPT

1917. -The __offspring__ of a pair of birds leave the nest when they are big enough to fly. children generations ancestors mates

-THE __OFFSPRING__ OF A PAIR OF BIRDS LEAVE THE NEST WHEN THEY A...