Warmblooded animals live an active life even in freezing winter, which helps them to________their normal body temperature. [ ]

What did you talk about justnow—My father asked me ___________.

_____ is even important _____ as the earth cooled down, water began to appear on its surface.

The meal over, the managers went back to the meeting room to _____ their discussion.

The engine of the ship was out of order and the bad weather ____ the helplessness of the crew at sea.