I don’t like talking on ______telephone ; I prefer writing ____letter.
I will not go to her birthday party ___________ I am invited.
What a wonder! They have finished _______ half of the project in such a short time.
The film _________ a novel by Sinclair Lewis.
Today,_________ rapid transportation and communication , the whole world seems to be smaller.
The government requested that all the people ___________ in any indoor public area.