下面几个加点词语在话语情境中表述最为得体的一项是

Do you know the results of the examinations Jonny has been admitted to his ideal university.— No wonder he looks ______.

Look! Betty and Bruce _________in the art room.

eople think it __________ privilegeto study abroad, but it doesn’t make _________ sense if you go when you evencannot look after yourself

The professor could hardly find enough grounds on which to base his arguments ______ the new theory