That can't be true!

That should not be too difficult.

That has never happened before.

That dress goes perfectly with your long legs.

That's not possible!

That’s a horse of a different color

That does it!

That’s another/different story

That doesn’t figure

That is not allowed!

That’s very good of you

That was a piece of cake.

That’s/It’s None of your business

That drives me mad!

as if that weren’t enough

That is definitely right

That excuse/joke is wearing thin!

That was good timing.

That sounds well.

That is going too far.

That's what my husband always says.

That's flat!

That’s not my pigeon

That’s utter bollocks!

That figures