Assinale a frase que apresenta erro gramatical quanto ao uso correto do “past continuous”.

• I was studying while my mom was cooking dinner.

• Camila and Juliana were walking in the park while their friends were studying.

• Julia was listening to music when the phone is ranging.

• Jessica was sitting on the grass while her brother was playing in the garden.

• Gustavo was watching TV when his mother arrived.