根据短文内容，选择适当的单词或短语填空，使短文意思完整，每个选项至多使用一次，有两项多余。

Linda and Betty were both nineteen years old. In June, after a school year was over, they decided to take a vacation________. They went to several towns and villages, visited some places of interest, saw and heard a lot of interesting things. They_______very much.
One afternoon, they were going to stay overnight in a small town. It was too______to walk further and they wished they could find a river and swim in the cool water. They were driving their car________while they were looking around. Suddenly Linda saw a lake not far away. They drove there fast and _______by the lake. They looked around and found a woman sitting on the stone and fishing there. After they______and were going to jump into the water, the woman came up to them and shouted, "Sorry, Madams. Swimming ________in the lake!"
"Why didn't you tell us about it________we took off our clothes?" Betty said angrily. "But it isn't forbidden to take off clothes by the lake," said the woman.