Clauses of cause (Advanced)

I went for a walk ... the sun was shining.
1. because
2. because of
The price of oranges is high, ... frost damage.
1. because
2. because of
I went to see the play, ... its good reviews.
1. because
2. because of
I enjoy the course, ... the professor is a good teacher.
1. because
2. because of
We all felt tired ... the hot weather.
1. because
2. because of
I left home early, ... I had to do several errands.
1. because
2. because of
... their interest in comets, they decided to study astronomy.
1. Because
2. Because of
I must leave now, ... I have a great deal of work to do.
1. because
2. because of
She arrived late ... a puncture.
1. because
2. because of
He didn’t phone ... his cell phone battery was flat.
1. because
2. because of

CLAUSES OF CAUSE
(Oraciones causales)