_______ I admit that there are still some problems about the traffic in this area, I don't mean that it can't be solved.
The stone bridge __ _last year is very beautiful.
Come and see me whenever ___________.
Tom raised his handsto say something, but he remained silent in the end.
Not until the early years of the 19th century ________ what heat was.
_______ in a friendly way, their quarrel came to an end.