用所给单词的适当形式填空
1.Iam_____(surprise)thathehasfinishedtheworkontime
2.Theteacherisalways____(serious)withherstudents
3.INtheUSyoumustopenagifi____(immediate)
4.You____(mest)doanycleaningonthefirstdayoftheSpringFestivalinChina
5.Thedish____(taste)great