He came to my class every week, but his look       that he was not really interested．

People complain that decisions to approve or deny a permit are often ______ rather than based on fixed criteria.

It is the respect for universal rights, our respect for different cultures, and our _________ to international laws that guide China's openness to other countries.

Her_____    for writing was a desire for women to get the right to higher education.

At the meeting they discussed three different _______ to the study of mathematics.