Mike and I _______ net-friends. We talk on-line every week.

We should do all we can the children who lost the chance to go to school.

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.

Is your bike broken? Let__________you.

He always looks ________. Now he is looking ________at his new drawing.