This is a grammar practice revising the sentence pattern Where is?  Also, it revises prepositions.

It is an animation showing a dialogue between a mother and son. The mother is asking where is her cellphone, and the son answers with different suggestions. 

Mom Asks Son Where Her Cellphone Is - Unit 3 - Where Is ...

mom-asks-son-where-her-cellphone-is-unit-3-where-is

Let's do English ESL general grammar practice. This is a grammar practice revising the sentence pattern Where is?  Also, it revises prepositions.