词语运用(共5小题,每小题1分,计5分) 用括号中所给的适当形式填空。 小题1:Please call me if you have any problems ____________ (work) out. 小题2:Marie Curie received the Nobel Prize ____________ (two) during her life time. 小题3:I think it is ____________ (danger) for children to be close to wild animals. 小题4:The old man has been ____________ (die) since three years ago. 小题5:I know only one of the ____________ (visit),how about you?