2、_____heavyrain!_______it’srainingsohard,Let’sstayathome.AWhat; Because BHow;As CWhata; Since DHowa;Though4、Wefind_______impossibleforus_______aforeignlanguagewellinashorttime.A.that;learning B.this;tolearn C.one;learning D.it;tolearn5、—It’severyone’sdutytojoint