He started to learn English in 1990 and in the years ________ he kept on using it in his work.
-What’s the old man standing there? -He is _____, a new comer.
-Mary, would you like to come to my birthday party? -_____.
-When ____ you return the dictionary to me?-Only when I ____ you next Sunday.
Charles did what he could _____ the servant, although he himself was in danger.
Let us hope we can settle the matter without _____ more trouble.