4. Complete the texts with the past continuous form of the verbs in brackets.
A Volcano Appears.
In 1943, a farmer in in Mexico (1) ...(work) when he saw a large hole appear in his field. Smoke (2) ... (come) out of the ground and there was a bad smell of eggs. He didn't know where his family were but everyone was in danger. Soon, ash (3) ... (erupt) out of the ground and everybody (4) ... (run) away from the new volcano, because it (5) ...(grow) bigger. After a week there was a cone 100 metres high.
