I enjoyed very much the three years ______ it had taken me to study English at school.
-- The terrible accident is under investigation. -- Actually, quicker action ________ those workers trapped in the mine.
A strong earthquake struck Chile's central-south coast on February 22, ________ great damage to buildings
China has made efforts to respond to _______ climate change, and set targets to control greenhouse gas emissions by 2020.
-- Sorry, I can't return your book today. I am only half way through it. -- ________. I have plenty of other books to read.
Alice was______________the letter from Tom, but it didn't reach her for some reason.