Write the sentence using past continuous and past simple : what / they / do / when / they see / the weather forecast?
What were they doing when they saw the weather forecast?
Write the sentence using past continuous and past simple : I / walk / home / when / it / start / snowing.
I was walking home when it started snowing.
Write the sentence using past continuous and past simple : You / ride / your bike / start snow.
You were riding your bike when it started to snow.