根据语篇内容，用方框中所给词的正确形式填空，使短文通顺、连贯。方框中有两个词为多余项。

allow  far  free  angry  be  fish  slow  say  they  fast  cover decide

Linda and Betty were both nineteen years old. In June, after a school year was over, they   1   to take a vacation in the countryside. They went to several towns and villages, visited some places of interest, saw and heard a lot of interesting things. They enjoyed   2   very much.
One afternoon, they   3   going to stay overnight in a small town. It was too hot to go   4   and they wished they could find a river and swim in the cool water. They were driving the car   5   while they were looking around. Suddenly Linda saw a lake not far away. They drove there   6   and stopped the car by the lake. They looked around and found a woman sitting on a stone and   7   there. After they took off their clothes and were going to jump into the water, the woman came up to them and shouted,
“Sorry, madams.  Swimming is not   8   in the lake!”
“Why didn’t you tell us about it before we took off our clothes?” Betty said   9   .
“But it isn’t forbidden to take off clothes by the lake,”   10  the woman.