Obchodní kancelář, podepisování papírů mužských ruku na list a4 tabulky ležící na dřevěný stůl, mužská bílou košili a černé - Stock záběry a video

Shot of the student listening lecture and writing

Black family at home. African american father, mother and child. Hispanic dad and mom helping son with school homework. Education, man teaching and boy learning. Close-up of exercise book, pen, hand

The bride and groom sign the marriage.

Elementary school student sitting at home at the table doing homework in mathematics

Student first-grader writes letters, wipes washing, closeup..