He refused to sell the old house, for it had too many pleasant ________with his childhood. 

______, his mother has to take care of him at home.

— How about the suggestion Prof. Smith put forward at the meeting last Friday? — The committee discussed it for hours without a decision _______. 

_______ on earth do you suppose_______ this?

With the guide _______ the way, we finally got to the village which we were looking for.