Задание 
Read these sentences and help the tiger choose the correct variant of the verb 'to be'.
(Прочитай предложения и помоги тигрёнку выбрать правильный вариант глагола «быть».)
It [am|are|is] raining.
The children [are not|is not|am not] watching TV.
[Are|Am|Is] the children playing in the playground?