2、照,如……;while:在……期间;而;虽然。用when,while和as填空:①Hewilltakemyplace________Iamaway.②Iwashavingmylunch________thefirealarmwentoff.③________youhavefinishedyourwork,youmayhavearest.④________heswam,hecriedforhelp.⑤________theInternetisofgreathelp,Idon'tthinkitgoodtospendtoomuchtimeonit. a