Ex. 1- Reason Clauses: Because, Because of, Due to, and Since

Explanation

The following conjunctions are used to connect adverb clauses to main clauses.
Because-porque
Since-ya que; puesto que
Because of-a causa de
Due to-debido a

1) Because is followed by a clause (verb and subject).
I couldn't go fishing last Saturday because I had to work.

2) Since is followed by a clause.
We don't need to clean the kitchen today since we cleaned it two days ago.

3) Because of is followed by a noun phrase.
The flight was delayed because of severe weather.

4) Due to is followed by a noun phrase.
I got home late due to a flight delay.

Use a comma when the clause is at the beginning of the sentence.

Because I had to work, I couldn't go fishing last Saturday.
Since we cleaned the kitchen two days ago, we don't need to clean it today.
Because of severe weather, the flight was delayed.
Due to a flight delay, I got home late.

I'm going to be late for work ______ this traffic.
1. since
2. because of
3. because
I can't lend you any money ________ I don't have any.
1. because
2. because of
3. due to
_________you're going by the store on your way home from work, would you mind picking up some trash bags?
1. Because
2. Due to
3. Since
There were no classes on Monday ________ the holiday.
1. due to
2. since
3. because
I couldn't see the signs well _________ it was dark and rainy.
1. because of
2. because
3. due to
Tom won't be able to go with us to the park _________ he has to work.
1. because
2. due to
3. because of
Many people are going to stay close to home this summer ________ high gasoline prices.
1. since
2. because
3. due to
________we don't have to work today, let's go on a picnic.
1. Because of
2. Since
3. Due to
I think this terrible headache I have is __________ being out in the sun too long yesterday.
1. due to
2. since
3. because
Fred said that he could clean the garage this Saturday _________ he doesn't have to work.
1. due to
2. because of
3. since