The air in Nanjing was much better during the Spring Festival because people were not allowed to let off firecrackers.—I agree. Everyone should do what he can the environment.

The bus ____ at six, but it arrived an hour later.

He ______very important information in his report. That was why he was criticized by his boss.

We _______ on this project forfour hours. Let’s have a rest.

________ from Milan Trenc’s novel，the film Night at the Museum brings to life a world where dinosaurs wander the earth.