将下列句子改成单数形式1.These are apples.2.There are many peaches on the tree.3.What are they?They're oranges.4.They are good children.5.Where are my shoes?

These is an apple.
These is a peach on the tree.
What is it? It's an orange.
He/She is a good child.
Where is my shoe?

1.This is an apple.
2.There is a peach on the tree .
3.What is it It's a orange.
4.He is a good child./She is a good child.
5.Where is my shoe?