Question

I found a boy______(study) in the room.

上面的下划线内应该填什么

Answer 1

I found a boy (studying) in the room.
翻译：我发现一个男孩正在房间里学习。
解释：
find(found) sb doing sth 发现某人正在做某事(动作当时正在进行)
find(found) sb do sth 发现某人做过某事(动作的全过程)
因为这里强调的是"正在房间里学习"，因此要用“studying".

Answer 2

studying

Answer 3

studying