Question

was seeing
were watering
6. While I studied yesterday morning, Tom dropped by to see me
were studying
was dropping
was studying
were dropping
7. We swam while David and Peter jogged by the lake.
were swimming
were jogging
was starimming
was iogging​

Answer 1

Respuesta:

6. While I was studying yesterday morning, Tom dropped by to see me.

7. We were swimming while David and Peter jogged by the Lake.

Explicación:

Cuando utilizas when/while siempre usa el presente continuo (present continuos)