.Mary has always been doing well in that company. Tomorrow she will go on a trip to Europe, ______________.
It was _________that Miss Wang had been to California and there she met Dr. White __________, who became her husband later.
How much time do you often spend _________ English every day?
Dr. Frank failed many times but he finally _________ to find a successful way to solve the problem.
It is said ______ vegetables and fruits are good to our health, apples and pears _________.
On August 15th, 2012, many people volunteered to Lei Feng Memorial in Fushun, Liaoning Province ___________ this great soldier(1940---1962).