从方框内选择适当的单词填空，完成短文

do, some, sightseeing, visit, him, picnic, fun, with, Sunday, are

Tony, Lisa and Amy going to their uncle this . Tony is going to help him to the housework. Lisa is going to play games him. Amy is going to cook food for . After that, they are going to go and have a together. It will be a lot of .