I will never forget the day _______ I joined theLeague.
_______ I met him, I thought he was a serious man.
---I think he is taking an active part in social work. ----I agree with you ________.
—How long _ like this? — Three weeks! It's normal that it rains without stopping these days of the year.
Today's English learners have a wide choice of dictionaries __to choose.
The man who was of killing four children in the care center was arrested and sentenced to death.