Task 5: Complete the text below with the past simple or the past continuous of the verbs in brackets. In February 1975, people in the Chinese city of Haicheng (21) ______________ (notice) that snakes (22)__________ (leave) their burrows. This (23) _______ (be) unusual because it (24) _______ (be) the middle of winter and the temperature was below zero. So, why (25)______ the snakes ________ (leave)? The snakes’ behaviour (26) __________ (convince) city officials that an earthquake (27)________ (go) to hit. They (28)__________ (order) people to leave their homes. A few days later, a massive earthquake (29)________ (strike) the city. The snakes’ behaviour (30)_______ (save) hundreds of thousands of lives