．Hishair is shorter than _______．

They _____ on the program for almost one week before I joined them, and now we _____ it as no good results have come out

before bed, cellphones can result in a restless night.

30—Why do you leave your daughter alone without worrying about her? —She will ____ leave home to lead her own life

Barack Hussein Obama, the present president of the USA, ________ a naughty (调皮的) boy at school.