Past Simple or Continuous :
1 They …………….(have) tea when the doorbell……………….. (ring).
2 Father …………… (smoke) his pipe while mother ………………. (read) a magazine.
3 While he …………….(mow) the lawn it …………………(start) to rain.
4 He………….. (have) breakfast when the toaster ……………… (blow) up.
5 When I …………………(come) into the office my boss ……………….. (wait) for me.
6 When we …………..(see) Brahim he ……………… (drive) a taxi.
7 Father …………….. (wait) in the car while mother……………… (do) the shopping.
8 When he …………….. (arrive) we ……………… (have) dinner.
9 While they …………….. (play) chess we………………….. (go) shopping.
10 They ……………. (have) a party while he …………… (sleep).