50 ! один глагол в предложении в past simple , а остальные в

While she was reading, an old photo fell out of the book. 

He saw her while she was staying in France.

The dog bit her when she was riding a bike. 

As he was swimming in the pool, someone took his cell phone. 

While she was reading, an old photo fell out of the book. Пока она читала, старая фотография выпала из книги. 
He saw her while she was staying in France. Он видел ее, когда она была во Франции.
The dog bit her when she was riding a bike. Собака укусила ее, когда она каталась на велосипеде.
As he was swimming in the pool, someone took his cell phone. Пока он плавал в бассейне, кто-то забрал его сотовый телефон.