—Was it in Shanghai, where the World Expo 2010 was held ______ you met Helen?—Yes. We hadn’t seen each other for about 5 years.
It was ______ fine weather that many people went out to enjoy the warm sunshine.
He is one of the world-famous musicians. By the time he was six, he ______ composing.
— I’m on ______ diet to lose weight. — You should take ______ exercise as often as you can.
--- Mr. Wang is a man of few words, but quick in mind. --- _______, you know.
-----How can I get to the wooden tower? ------There are two paths here and , I hear , ___________of them leads to it.