Clauses of reason

Question 1

Because

Answer 1

1. We didn’t go because it was raining heavily.
2. Because the event was cancelled, they lost their deposits.

Question 2

As/since

Answer 2

As/Since the roads were blocked, the victims had to be rescued by helicopter

Question 3

Because of

Answer 3

We use because of before a noun.

1. The concert was postponed because of the heavy rain.

Question 4

Due to/owing to/on account of

Answer 4

before a noun. They mean ‘because of’ but are more formal.

1. The event was cancelled due to/owing to/on account of lack of interest.
2. I couldn’t enjoy the meal due to/owing to/on account of their constant arguing.