past simple or past progressive

She ____________ (surf) when the shark _______________ (attack) her.

• surfed / was attacking

• was surfing / attacked

He ___________ (dance) at a party when he __________ (meet) his girlfriend.

• was dancing / met

• danced / was meeting

I _____________ (have) a picnic when I __________ (see) my sister.

• had / was seeing

• was having / saw

When they _________ (see) the shark they ___________ (swim) in the sea.

• were seeing / swam

• saw / were swimming

Susan _________ (arrive) while I _________ (have) dinner

• was arriving / had

• arrived / was having

He _________ (play) football, when he _________ (break) his leg.

• played / was breaking

• was playing / broke

I __________ (wait) for my friend when the bus _________ (arrive).

• was waiting / arrived

• waited / was arriving

When I ________ (get back) my mum _________ (cook) dinner.

• was getting back / cooked

• got back / was cooking

I _________ (talk) to Stephen when the phone _______ (ring).

• was talking / rang

• talked / was ringing

Chris ________ (fall) off the ladder while he _________ (paint) the ceiling.

• was falling / painted

• fell / was painting