[General] I wonder ~

[Jeonghee]

Question : fill in the blank with proper word.

I wonder ( ) somebody came.

What would you fill in the blank? Which one is better, if or that?

 

[Rover_KE]

Where did you find this exercise?

As Tarheel said in answer to your other thread:

There wouldn't be much occasion to use either one, so I wouldn't worry about how they are used.