用所给动词的适当形式填空,必要时可加助动词。
1.Ifyouwanttocrossastreetyou______(wait)forthegreenlight.
2.Americanfastfoodseems______(be)themostpopularintheworld.
3.They______(eat)alotofpotatoesyesterdayso_____I.
4.Mymothermademe_______(clean)myroomallbymyselfyesterday.
5.Pleaselookcarefullybeforeyou_______(cross)thestreet.
6.There______(notbe)enoughpeopletopickappleslastSeptember.
7._______Mary______(move)toJapanafewweeksago?
8.There______(be)noschoolshereinthepast.
9.They______(plan)togotoKunmingforaholidaynow.
10.Pleasedon'tforget______(turn)offthelightsbeforeyouleave.
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