【英语时态语法分析Amassivewinterstormpackinguptoafootofsnow,strongwindsandicytemperaturesslammedintothenortheasternUnitedStatesonTuesday,cancelingflights,closinggovernmentofficesandsendingchildrenhomefromschool.】
英语时态语法分析
Amassivewinterstormpackinguptoafootofsnow,strongwindsandicytemperaturesslammedintothenortheasternUnitedStatesonTuesday,cancelingflights,closinggovernmentofficesandsendingchildrenhomefromschool.
哪位帮我分析一下这个句子的语法,主要是说这个时态,现在进行时和过去时这方面的,