Choose the correct answer to complete each of the sentences.

My dad ................ a documentary about war heroes at 9 p.m. on 30th April.
1. watched
2. was watching
It ...................... heavily, and icy winds ..................... across the city. We lit a fire in the fireplace and sat next to it to keep warm.
1. snowed
2. was snowing
3. were blowing
4. blew
She ................. school and ................... to college at the age of 18.
1. finished
2. was finishing
3. applied
4. was applying
My father ............. his own business in his youth and .............. very successful.
1. started
2. was starting
3. became
4. was becoming