Переписать предложения в единственном числе: 1)there are many fish in the sea. 2)your children are very good. 3)our schools are near. 4)the cliffs are dangerous.

1There is a fish in the sea
2Your child is very good
3Our school is near
4The cliff is dangerous 

1)there is fish in the sea
2)your child is very good
3)our school is near
4)the cliff is dangerous