The foreigner was talking to the children in the park ______ he was familiar with them.
I have kept that picture _____ I can see it every day as it always reminds me of my university days in London.
The room is in a terrible mess; it __________ cleaned.
--- How about the book you are reading? --- Good indeed. It ___________ many problems we have come across in our study.
--- It’s been a wonderful Halloween Party. Thank you very much. --- ___________.
-- I have just had my watch repaired. --- How much did they for that?