问题
选择题
When I entered the room, I found Mary ______ at the desk ______ her homework.
A.sat; doing
B.sitting; to do
C.seating; to do
D.seated; doing
答案
答案:D
考查非谓语动词。第一个空考查过去分词作宾补, seat动词“坐”没有现在分词形式,故用 seated,第二个空用doing做伴随状语。故选D。句意:当我进入房间的时候,我发现玛丽坐在桌旁,做作业。