----Many online games are full of violence, which do harm to the development of the children. ----And that’s _______ my concern lies.
____ was very ______ that little Jim wrote the letter.
What is it _____ his daughter needs most?
Who was it _____ saved the drowning girl?
“How was ______ they discovered the entrance to the underground palace?” “Totally by chance.”
___ that caused him to serve dinner an hour later than usual.