Scientists photographed for the first time ever _____ wild gorillas used a stick to test the depth of a pool before getting into it, according to a recent study.
As a matter of fact, ________ matters most in learning English is enough practice.
Good food, good sleep, no exercise. That's ________ he gained weight.
It gives his life a flying start ________ he has gone abroad for further education.
The Super Girl Wang Bei's death highlights the fact ________ cosmetic surgery has become one of China's biggest beauty secrets.
Sometimes, ________ we show our gratitude for a person is reflected in the kind of food we serve him or her.