You can leave it as-is.

As is often the case with new technology, there are bound to be some glitches.

Either option is fine.

The reason is that I was late for work.

A is not any more than B is intelligent.

What I am now is not what I used to be.

He is what is called a champion of justice.

There is no use crying over spilled milk.

A miss is as good as a mile.

There is nothing to worry about.