The graduate students will convene in the Student Union.

A．Teachers are more anxious teaching math than their students learning math.
B．Math teachers, like math learners, do not like the subject due to its difficulty.
C．A difficult subject like math may affect teachers’ confidence in teaching the subject.
D．Math is so difficult that no teachers like to teach it.

A．The American PR industry should develop global communication technologies.
B．People involved in PR should avoid suing the word "foreign".
C．American PR companies should be more internationally minded.
D．People working in PR should be more fluent in foreign languages.