In the Great Depression, the American government couldn’t find good solutions _____ the unemployment problem
People are busy buying all kinds of things when Christmas Day is ______.
It was at the very beginning _____ Mr. Fox made the decision _____ we should send more fire-fighters there.
You can’t imagine ______ when I received your letter.
The country life _____ he had been used to ______ greatly last year.
----I’d like to have a table for six. ----Sorry, sir, but we don’t have any table _____ right now.