past simple vs continuous

She _______ (surf) when the shark attacked her

• was surfing

• surfed

He was dancing at a party when he _______ (meet) his girlfriend

• was meeting

• met

Susan arrived while I ___________ (have) dinner.

• had

• was having

while I was waiting for my friend, the bus _________ (arrive).

• arrived

• was arriving

He was playing football, ________ he broke his leg.

• when

• while

I phone my friend _________ my mum was cooking dinner.

• when

• while

I was having a picnic when I ______ (see) my sister.

what __________ (do) last weekend?

While I __________ (talk) with my friend Paula, Charles invited to dance.

I _____________ (read) a book when my brother got back.