An English question 任务型阅读.求帮忙！！谢谢

An English question 任务型阅读.求帮忙！！谢谢
Many of us think that all wild animals are dangerous.In fact,very few of them will eat a man if he leaves them alone.If you meet a tiger,I'm sure you'll run away,but do you know that even a tigter does not like meeting a man?Tigers only kill a man when they are too old to catch small animals for food.Some animals get frightened when they smell a man.Some of them stand and look at a man for a short time before they run away.Others don't even look at all but go away.Wild animals only eat a man when they are afraid that he will try to kill their young ones,or when he tries to kill them.
1、______ of them will eat a man if he leaves them alone.
2、Tigers are dangerous to a man ___________.
3、When you meet a tiger,________________.
4、Wild animals will eat a man when_________________.
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