怎么把这些句子改成过去完成时?Tony goes out to have a picnic with his frien

ony went out to have a picnic with his friend Tom.They went to a park.The air was fresh and they had a good time.After eating a lot of food,they went back.Suddenly,a big dog was running towars them.Both of them areafraided of dogs,so they hid in a bush.Tony thought thant now they were safe.But suddenly,he heard Tom'sscream.Tony saw Tom jump out of the bush and ran quickly to a three nearby.then,Tom climbed up the tree,too.Tony asked tim angrily why he did not stay in the bush when it was dangerous to leave the bush.Tom said that staying in the bush was more dangerous because there was a big snake in the bush.
已经改完

按照动词变化改。，