问题补充：
the TV play, he got down to his homework.
A. Watching; do
B. After his watching; do
C. Watched; doing
D. Having watched; doing
答案：
A. Watching; do
B. After his watching; do
C. Watched; doing
(答案→)D. Having watched; doing
解析：考查非谓语动词。逻辑主语为he，与watch之间为主动关系，根据句意用其完成式；get down to doing着手做。句意：看完电视剧之后，他考试做他的家庭作业。
