when i went to say goodbye to anna,she __the piano a.is playing b.plays c.was playing d.played

题目

when i went to say goodbye to anna,she __the piano a.is playing b.plays c.was playing d.played
what college are you ___?
a.in b.to c.for d.on

答案

选C was playing
表示过去进行时.
选a.in
固定端与in college在大学