Our physics teacher and English teacher always give their lessons in a lively and clear way, ______ greatly benefits us students.

I’m not a little tired today after giving the room a thorough cleaning and I have never had ____ today.

It is the first time that I _______ this kind of moon cake

George always does his best, and that’s ______ I like about him.

He really can’t understand _________ he said was wrong.