And, but, or, so, because:

Question 1

and

Answer 1

We use and for adding similar information or ideas; it means ‘too’ or ‘in addition’.

My brother is a plumber, and my sister is a teacher.

Question 2

but

Answer 2

We use but for adding contrasting information, i.e. information that is different.

1. I studied a lot, but I failed the exam.

Question 3

or

Answer 3

We use or to connect different possibilities.

1. Would you like to go to the swimming pool or to the beach?

Question 4

So

Answer 4

to introduce the consequence or the result of something.

1. I spent three hours at the gym, so I’m really tired now.

Question 5

because

Answer 5

to introduce the reason for something.

1. I’m speaking quietly because I don’t want to wake up the baby.