问题描述：
用were,are,iswas的正确形式填空
1.Theremanytunnelsandhighwaysinthecitynow.
2.Therenohighwaysorsubwaysinthecitybefore.
3.Therenotunnelslong,longago.
4.Thereanyfatoriesorpiers50yearsago.
5.Therefastfoodwhenmygrandpawasyoung.
6.ourcityquitedifferentnow?
7.thereanycomputers50yearsago?
8.theseyourphotos?Yes,theyare.
1.Theremanytunnelsandhighwaysinthecitynow.
2.Therenohighwaysorsubwaysinthecitybefore.
3.Therenotunnelslong,longago.
4.Thereanyfatoriesorpiers50yearsago.
5.Therefastfoodwhenmygrandpawasyoung.
6.ourcityquitedifferentnow?
7.thereanycomputers50yearsago?
8.theseyourphotos?Yes,theyare.
