so because

I'm tired _______ I go to bed early.

• because

• so

I drink milk ______ it contains lots of calcium.

• because

• so

I go swimming _______ I want to be taller.

• because

• so

There is lots of salt in crisps,_____you shouldn't eat them every day.

• because

• so

It's hot ______ I turn the air conditioner on.

• because

• so

He is sad _____ he gets bad marks.

• because

• so

The dress is expensive ______ I can't buy it.

• because

• so

I'm young ______ I can't drive a car.

• because

• so

She does the test quickly _______ it is easy.

• because

• so

He is unkind ______ no one likes him.

• because

• so