A Snakes and Ladders game to practice There is, There are, It is, They are.
You can find more practice tasks at http://www.englishshouldbefun.com/basics-there-is-there-are/
Look out for countable / uncountable. And remember - when there is a list, there is / there are depends on the FIRST item in the list. So it's "There is an apple and 2 bananas" but "There are 2 bananas and an apple".