Question

I can see Mike singing in the room or I can see Mike is singing in the room

到底是看成宾语补足语还是宾语从句？
这两句话是不是都对呢

Answer 1

宾补就是补充说明宾语的成分。
I can see Mike singing in the room.
可以转换成Mike is singing the room. 所以是宾补。

I can see that Mike is singing in the room.是宾从
宾语从句的that不能省，除个别情况外。

Answer 2

前者是宾语补足语，后者是宾语从句
“I can see Mike singing in the room ”这里的“singing in the room”是补充说明宾语发生的动作，所以是宾语补足语。
”I can see Mike is singing in the room“可以理解成”I can see that Mike is singing in the room“，这是一个that引导的宾语从句。
这两个句子都是对的。后者that可省略，不影响句义的表达。

追问

那是不是两句都正确呢，I can see Mike ——（sing) in the room 考试时该填singing 还是is singing

追答

最好填sing,因为出题者想考的是关于see sb doing sth这个句型结构