用所给词适当形式填空。
（1）I _________ my homework yesterday.(finish)
（2）She is __________ a letter.(read)
（3）Amy _________ a book last week.(buy)
（4）Sam _________(do not）go to the park yerterday.
（5）Can you _______ high?(jump)
（6）My mother _________to shanghai tomorrow.(go)
（7）He will _________ hamburgers.(eat)
（8）I am going to _________my trousers.(wash)
（9）She_________ got a new toy.(have)
（10）You __________a very good boy.(be)