Complete the sentences with the correct past simple or past continuous form of the verbs in brackets. 1 She (surf) when the shark (attack) her. 2 He (dance) at a party when he (meet) his girlfriend. 3 I (have) a picnic when I (see) my sister. 4 When they (see) the shark they (swim) in the sea. 5 Susan (arrive) while I (have) dinner. 6 He (play) football, when he (break) his leg. 7 I (wait) for my friend when the bus (arrive 8 When I (get back) my mum (cook) dinner.9 We (play) volleyball with Mary, when you (call) me. 10 When the teacher (come) in, they (study) English. 11 The baby (sleep) when the telephone (ring). 12 As I (walk) in the streets of Holland, I (meet) an old friend of mine. 13 I (lose) my car keys. 14 I was looking for my purse when I (drop) my credit card. 15 My uncle (take) me to the airport yesterday​