So/Such?

It was _____ terrible weather that we had to stay at home.

• so

• such

She spoke ____ clearly that I understood everything.

• so

• such

You should read this book---it's ____ interesting.

• so

• such

There was ____ a long queue that I decided not to wait.

• so

• such

She's ____ a good doctor that I'm sure you'll be happy with her.

• so

• such

That man is driving ____ slowly that I'm going to overtake.

• so

• such

That decision was _____ a terrible mistake.

• so

• such

He worked ____ hard that he had a nervous breakdown.

• so

• such

It's _____ difficult to decide what to do.

• so

• such

He committed ____a serious crime that he ought to stay in prison for life.

• so

• such