Because or so?

Because or so?

(made by Carmen Luisa)
Source: Grammarway 2.

Choose the correct conjunction.

1 / 10

I washed my clothes ... they were dirty.
1. because
2. so
Frank's hair was too long, ... he went to the hairdresser's.
1. because
2. so
I went to bed late last night, ... I feel tired today.
1. because
2. so
She forgot to turn off the oven, ... the food was burnt.
1. because
2. so
It was my birthday, ... I had a party.
1. because
2. so
... we were bored, we went for a walk.
1. Because
2. So
The boss was angry ... Jenny was late.
1. because
2. so
Lisa was cold, ... she put on a sweater.
1. because
2. so
... I was hungry, I made a sandwich.
1. Because
2. So
Simon was put in prison... he robbed a bank.
1. because
2. so