We’d better go downstairs right now forlunch.—__________ They serve food 24 hours a day.

Japan and other countries have taken action________ prevent nuclear radiation (核辐射).

The government of the United States began at once to investigate the case ______ a lot of students were killed.

They would rather__________ colours like orange or yellow than blue or white.

He is very stubborn, it is impossible to argue _____________ what he doesn’t want to.