So or So that

It was late ____ I went home.

• so

• so that

The car was very expensive ____ I didn't buy it.

• so

• so that

He spoke slowly ____ we could write everything down.

• so

• so that

I posted the letter a couple of days ago, ____ they should have received it by now.

• so

• so that

It was ____ I couldn't complete it.

• so difficult

• so difficult that

We were silent ____ wake the baby.

• so as not to

• so that as not to

It was raining, ____ I took an umbrella with me.

• so

• so that

I was disappointed because I had tried ____ hard.

• so

• so that

I wrote the number down ____ I wouldn't forget it.

• so

• so that

The test was very easy, ____ everyone passed.

• so

• so that