Fill in the blank with the correct form of the verb BE in the following yes/no question.
Formula: BE + subject + -ing verb?
Example: Is she exercising?
I kickboxing?
![Fill in the blank with the correct form of the verb BE in the following yesno question Formula BE subject ing verb Example Is she exercising I kickboxing class=](https://us-static.z-dn.net/files/d5f/c435cc37dd0e5fb1c70be125bf6c59d2.png)