问题
选择题
________ the classroom, the teacher found all the parents already______ there.
A．Entered; seated
B．Entering; seating
C．Entered; seating
D．Entering; seated
答案
答案：D
考查非谓语动词。第一空主语the teacher与Enter之间是主动关系，故用现在分词作状语，第二空考查过去分词作宾补，结构为find sth done，句意：这位老师进入教室，发现所有的老师已经坐在那了。所以选D。