______ he had worked hard all the time, he failed the exam again.

____ you have a chance , you might as well make full use of it.

As the sea ice melts sooner each swimmer,polar bears are forced to come ashore earlier and face food shortages _____ they have stored enough fat to last them through the season.

The moment ________ Leo will never forget is________ Mr. Smith gave him a lot of valuable advice on how to improve his writing.

But don’t think there is nothing else you can do _____ the interview is over. You should write to the company to thank them for giving you the interview.

“I think we need to pay more attention to the artistic and cultural work that goes on in every neighborhood in this city,” Ms Martin said. “We are part of _____ makes New York unique.”

The traditional view is ______ we sleep because our brain is “programmed” to make us do so.

________China has successfully launched its Shenzhou Ⅵ with two astronauts in it has shocked the world.

They want a house,            we would rather live in a flat.

The elderly patients still prefer the traditional way, ______ online booking system is supposed to be convenient and fast.