One evening, I was with my friend Auguste Dupin at his house in Paris when he had a visit _____ Georges Godinot, head of the Paris Police.
We’ll carry the work through , cost _______ it may .
Persist to the end , _______ you are the only one left.
He always talks _______ he had been to outer space.
You’d better come back earlier _______ it is getting colder.
He was walking along the sands _______ he saw a big foot-print in the sand . A. whileB. whenD. asD. after