The teacher told me that the students I wanted to see were seen___ football on the playground just now. A playing B to be playing C play D to play为什么D不可以

Question

The teacher told me that the students I wanted to see were seen___ football on the playground just now. A playing B to be playing C play D to play
为什么D不可以

Answer 1

the students I wanted to see were seen是被动,首先恢复成主动saw the students I wanted to see
词组是see sb+do /doing sth
just now表明只是某一个时间点看到,应用see sb doing sth
而D to play是see sb do 的被动,错误
因此选择A