（用所给动词的适当形式填空）：
1.A:what ________Brown ______at that time?(wear)
B:A blue iacket.
2.We are going to Shanghai Museum.Do you want ______with us?(go)
3.You can see children_______model planes in the park.(fly)
4.Policeman usually wears a uniform when he ________.(work)
5.Let~s wait until he _________.(come)
-（按要求改写下列句子,每空一词）：
1.There are many Christmas cards in the box.(改为否定句)
_________ ________ ________ ________Chrtstmas cards in the box.
2.Julia has not got home from school yet.(改为肯定句)
Julia______ _______ _______ home from school.