в вазе лежало 19 слив. Дети съели 9 слив. После этого в вазу положили 10 слив. Сколько слив стало в вазе?

1) this coffee has just made to help yourself 
2) these shirts haven't ironed yet
3) look! The bridge is repairing
5) in Greece the Olympic Games held once in four years 
6) the problem was studying for three years