The researchers found clear and convincing evidence _________ happiness is the key when it comes to better health and longer lives.
After the recovery from her illness, my mother began to writing something as a way to kill her time.
The UK, ____Great Britain and Northern Ireland, is a country famous for its long history.
The U.N. announced, “China so far _________$6 million to the World Food Program to help ease food shortages in the three African countries worst affected by the Ebola virus.”
-- -You should have thanked her before you left.-- - I meant ________, but when I was leaving I couldn’t find her anywhere.
The imaginary line passes through Greenwich, so Pingyu had a photo ______ standing on either side of it.