Hearing the________story,the little boy had a________ expression on his face.[ ]

________ Daniel _________ glasses —Yes, he _________.

Economy should be developed to raise people’s living standard , effective measures should be taken to deal with different types of pollution caused by the economic development

On hearing the _____ news that they had won the match, they shouted for joy in _____ voices.

— Did you know any Chinese before you arrived in Beijing?—Never ________ it, actually.[ ]