Hola.
Respuesta:
1_ There is a mouse in the kitchen. ✅
2_ There isn't a rabbit in the garden. ❌
3_ There are five frogs in the lake. ✅
4_ There isn't a snake in the street. ❌
5_ There aren't ten horses in the stable. ❌
6_ There are two spiders in my bedroom. ✅
7_ There aren't four cats in my friends house. ❌
8_ There is a dog at home. ✅
Explicación:
Utilizamos There is para una cosa o un sustantivo singular, mientras There are para más cosas o sustantivos plurales.
Espero te ayude... ✨