The newspaper says if more underground lines next year, it will be much easier for people to travel around Nanjing.

As we know, in our Chinese history _____ was a time when industry was only a home business.

_____ is his hair?—It’s black.[ ]

I’m going to Beijing ______ June 12th. [ ]

Green economy offers a new model ________ people could both protect the climate and develop the economy, according to what Li said at the International Cooperative Conference on Green Economy and Climate Change.