题目内容：

改过去式
Everyday Helen has to face lots of books , and homework seems endless . Such boring life continues for a long time . Helen feels extremely tired . She thinks it won't do good to her study , so she decides to take a trip .
She starts to pay attention to information about travel and packs her clothes to prepare for the trip .
On the first day of the holiday , Helen flies to the seaside . The sky is blue and the water is cool . Helen feels very happy and really gets relaxed .