① It is I that am responsible for that.

② They believed that it was freedom that they fought for.

③ It is a delight in rhythm that makes us like to dance or march or keep time with music in any other way.

④ It is not how much a man may know, that is of importance, but the end for which he knows it.

⑤ Albert Einstein changed the world we live in. It was he who fathered, for better or for worse, the atomic age.

⑥ There is neither good nor bad in any scientific discovery; it is use to which it is put which makes it beneficial or dangerous.

⑦ It was because she was ill (that) we decided to return.