Q:Why is it getting warmer and warmer these years?A:It's sai

Q:Why is it getting warmer and warmer these years?A:It's saidQ:Why is it getting warmer and warmer these years?A:It's said that's greenhouse effect .Scientists______(study) the global warming these years,but ____(not solve)it yet .Q:The snow _____(stop).Let's go out to make a snowman.A:OK.Q:He was really a whiz kid .By the time he_____(be)ten,he _____(run)a company of own.A:I thougt so.