The teacher came to the classroom and demanded ____ what had happened.

To protect animals in danger ,we should peoplethem .—I agree with you.

Waiter, $ 20 for dinner, right –I’m afraid $25, sir, for drinks are ________.

Wolves are very ______: they can live in forests, on open plains, or in the snows of the Arctic.

I ______ for Beijing in a few daysDo you know when the earliest plane ______?