By the time I was nine ,I ______hundreds of English words.

At eight o’clock last night Alice _________ with her family happily in Hongkong.

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

Most birds find it safe to sleep in the trees,but_______they have eggs or young chicks,they don’t use a nest.

What color is your pencil –It’s _________.