用所给单词的适当形式填空

（1）The film The Legend of Silk boy is very interesting. But I have seen it only （one）.

（2）Look, the children are (swim) on a rope.

（3）On Sundays the girl often (help) some old men do some housework.

（4）We do morning (exercise) at school every day.

（5）My mother usually goes (shop) in the morning.