题目内容：

句型转换 The have enemies that kill and eat them.Because of this,many of them died out.=
1.The have enemies that kill and eat them.Because of this,many of them died out.
=The have enemies that kill and eat them._____ _____ ____,many of them died out.
2.The scientists are studying the rhino.
=The rhino______ ______ ______ by the scientists.
3.The climate has an effect of the rainfall
=The climate_______the amount of the rainfall.

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1.They have enemies that kill and eat them.Because of this,many of them died out.=They have enemies that kill and eat them.Owing to this（On account of）,many of them died 2.The scientists are studyin...