题干
With these words, Tom went on ________ his homework.
A：do
B：to doing
C：doing
D：does
答案(点此获取答案解析）
C
With these words, Tom went on ________ his homework.
A：do
B：to doing
C：doing
D：does
为三个盒子中含球最多的盒子里的球数，则 
为（ ）