I think it’s very dangerous to drive six hours without a rest.—I agree. Six hours really a very long time.

If it _____ tomorrow, we won’t go to the park.

The Great Wall is ____________ wall in the world. There are many stories about it.

I’m an English teacher ______ a school ______ Beijing.[ ]

The whole world is undergoing the biggest financial crisis nowadays, ____ calls for international cooperation among all nations to get over.