The traffic slowed down because of the heavy snow in Yushu county, presenting a new _________ to the recovery from the earthquake.
He met a lot of his friends at the party, ______devoted to rural education like him.
The number of people invited ______ fifty, but a number of them ______absent for different reasons
—Excuse me, would you lower your voice or use your mobile phone outside? —Oh, sorry.I_______
In addition to his traditional medical treatment, he tried to put himself in situations______ would bring about positive emotions.
Eating properly and exercising _______ make one enjoy a longer and healthier life.