past continuous vs past simple

They were watching TV WHILE I ____ my homework

• am doing

• did

• was doing

• done

While I was walking in the forest, it ____ to rain

• started

• was starting

• is starting

• start

I ____ a bath WHEN the telephone ___

• is having / rang

• was having / ring

• was having / rang

• have / rang

My grandmother ____ while my grandpa and I ____ watering the flowers

• was cooking / were watering

• cooks / watered

• is cooking / are watering

When I ___ home, she wasn't there

• arrive

• am arriving

• arrived

Dante was studying for the exam ___ Luca was watching TV

• WHILE

• WHEN

My parents were very angry ___ I got home

• WHILE

• WHEN

Lucia was sleeping _____ Tomi phoned her

• WHILE

• WHEN

Mia ____ her Maths homework at three o'clock in the morning

• was doing

• is doing

• does

• did

My mum is angry. ______ she was cleaning the kitchen, I was sleeping

• WHILE

• WHEN