The head office of the bank is in Beijing, but it has ______ all over the country.
The reason why I didn't go to Shanghai was ________ a new job.
________ makes mistakes must correct them.
"Is Mary from New York City " "I don't know _______."
His success was because of ________ he had been working hard.
Although he didn’t expect _______ me here, he advised _______ to the nearest restaurant.