Science and technology are advancing soquickly that _____ is a possibility today may be a reality tomorrow

__________, he talks a lot about his favorite singersafter class.

derstandings_____ from lack of social communication, unless _____ with properly, may leadto serious problems

It is not socially ____ for parents to leave children unattended at that age. [ ]

A great explosion _______ in achemical factory in Hangzhou several months ago.