You could use multiple words in that blank. For example:
Para el postre, quisiera pastel.
Para el postre, quisiera helado.
Answer:
I climbed that tree from the garden.
I climbed these trees from the garden.
You were flying the child's kite.
You flew the child's kites.
Explanation:
I climbed that tree from the garden.
I climbed these trees from the garden.
You were flying the child's kite.
You flew the child's kites.
The last two have the determinative article "the", so does not correspond any demonstrative adjective.
