When a piece of ice is taken into a warm room, it will become smaller and smaller, until in the end it completely.

When the old woman was to cross the street, she was knocked down by a car and badly ______.

At least 300 million people are using QQ by Ma Huateng to chat online.

“I’m ______ before you . Then you can havemy seat.” With these words , he stood up.

become addicted to online games, ______about what is more important.