阅读短文内容，从短文后的A-F选项中选出5个适当的选项补全短文，并将代表句子的字母填写在答题卡相应的题目后。
If you go into the forest with friends, stay with them．      ．If you do get lost, this is what you should do.
Sit down and stay where you are．Don't try to find your friends．Let them find you．You can help them to find you by stay in one place.
   ．Give them a signal(信号)outing or whistling (吹口哨) three times．Stop．Then shout or whistle three times again．Any signal given three times is a call for help.
Keep on shouting or whistling, always three times together．When people hear you, they will give two shouts or two whistles．    .
If you don't think that you will get help before night comes, try to make a small room with branches(树枝).
 ? You would have to leave your little branch room to look for something to eat and drink．Don't just walk away．Pick up small branches and drop them as you walk so that you can find your way back.
That is all to say．