. —Why do you ____ very happy this afternoon? —Because we are going to spend the evening at Lily’s house.
How does your sister improve her speaking skills? joining an English club.
The propgram also provide them _____ job training so that they can live a normal life.
—It smells terrible. What has happened here? —Look, there is much waste gas _____ from the chemical factory.
—Have you finished your homework? —Not _____. There are still some exercises to be done.
_____ the environment is important for human beings.