问题描述：
选用because,because of填空 The little girl can't go to school _ her parents are very poor.
Many animals live in rainforests _ there is lots of food.
Birds can fly very high _ their wings.
I didn't go to the zoo _ the hot weather.
More than 600 people died _ the earthquake.
Many animals live in rainforests _ there is lots of food.
Birds can fly very high _ their wings.
I didn't go to the zoo _ the hot weather.
More than 600 people died _ the earthquake.
问题解答：
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