Question

Поставьте предложения в Past Simple или в Past Continuous
As i (do) my homework last night i (hear) a strange noise which (come) from the garden. I (go) out to see what (happen), only to find my cat chasing a rat

Answer 1

was doing
heard
was coming
went
was happening

Answer 2

As i was doing my homework last night i heard a strange noise which was coming from the garden. I went out to see what happened, only found my cat chasing a rat