() I think discussing freely in class can make students ___ in study.A to be active B being active C actively D active

I think i think I Think I think I i think i love i think i love i think so i I think I’m I think I understand I think I think too much. I think--I think too much. I will think about everytime i think about I think of you I think English easy i think doing sth I think( )Tom's I don't think