Which of the following sentences is a COMMAND?

I felt that I was not yet ______ to travel abroad.

I was to have made a speech if ______.

I have never been to London, but that is the city ______.

It was as a physician that he represented himself, and ______ he was warmly received.

Come and see me whenever ______.

The team can handle whatever ______.

______, he is ready to accept suggestions from different sources.

The physicist has made a discovery, ______ of great importance to the progress of science and technology.

Mr. White works with a chemicals import & export company, but he ______ for this industrial fair, since he is on leave.

He left orders that nothing ______ touched until the police arrived here.