Sheldon could have defeated Howard in the match, but he _______ too careless at the last minute.

What do you think of the young woman singer?-It’s hard to say, but her voice __________ beautiful.

I don’t know if it _________ tomorrow. We won’t go shopping if it ____________.

The number of wild lions in Africa (非洲) no more than 15,000 in the year 2010. — Like tigers, they are really in danger of dying out, too.

His brother is _________ to carry the heavy box.