Some people are afraid that ______ air pollution may cause changes in weather around the world.

r ran into a crowd of middle schoolstudents, ______to hospital immediately.

How did you find your visit to the museum? —— I thoroughly enjoyed it It was＿＿＿＿interesting than I had expected

The government work report by Premier Wen covers a variety of issues,and social justice [ ]

________table manners, I can’t stand people________with their mouths full. [ ]