1)We___(be)toFranceonce.2)Hesaidthathe__
___(receive)herletterthedaybefore.
3)Theyneverknewwhat_______(happen)totheworldinahundredyears.
4)YesterdayItoldmyMumthatI_____(go)onatriptoYan'an.Mumsaidthatshe_______(get)meanewbackpack.