－Do you really mean it when you say he will       a good president?

——Why are the housing prices in big cities going up all the time? —————One reason is that people are__________ into overcrowded cities in great numbers.

As reliable parents, they never ______ to give their son what he is promised.

— Would you _______ a drink?—No, thanks．I have given up drinking.

At minus 130℃, a living cell can be ______ for a thousand years.