The national Education Department says school safety has set off alarm bells with frequent serious accidents_________students got injured or even killed.

Antarctic _____ we know very little is covered with thick ice all the year round.

What are you going to be when you grow up?－I’m going to be _____ English teacher in ______ university.

There_____ to be a wasteland and now stands a building.

Listen! What’s the noise?— My brother ______ the program of the World Cup in the sitting room.