We walked for two hours to get to the top of the mountain from ___we had fantastic views.

The hospital has been set up in ________ was a waste land many years ago.

  It was the long March Rocket 2F, as reported,       sent Shenzhou VI spaceship into space.

Jack’s dad told him he could have________ he wanted for Christmas.

The science of medicine, _____ progress has been very rapid lately, is perhaps the most important of all the science.

The clever boy made a hole in the wall, ____ he could see ____ was going on inside the house.

It was _____ weather that everyone wanted to go outing .

------ did you remember the days _____ we worked on the farm ?
------ Certainly . Especially the hard times _______ we spent together .

______ is certain is that Bill will recover from his injury in time for the football match.

—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.