The pop song concert was so well ________ that before it started, all the tickets had been sold out.

It only ___ for me to pass all the money that she had to the right person.

Science is _____ difficult for some students ____ learn, so many of them don’t like it.

Tom admitted ______ in the examination and he was not admitted _____ the school at last.

I tried to his attention, but failed.[ ]