4 Complete the sentences with the Past Continuous or the Past Simple form of the verbs. Who do you think is talking? 1 In the morning, Pi was playing (play) a game on the lab computer when I (come) in!

1. In the morning, Pi was playing a game on the lab computer when I came in!

В этом предложении необходимо использовать Past Simple (простое прошедшее время), так как действие (I came in) произошло внезапно и прервало другое действие, которое происходило в прошлом (Pi was playing).

Ответ: came