because引导的原因表达 — 英语填空题
题目
用 because 或 so 完成下列句子，使句意和逻辑都正确，每空一词。
(1) Koalas sleep almost all day ___ they are very lazy animals.
(2) Many people are afraid of snakes, ___ I never go near them.
(3) I want to help the wild birds ___ winter is coming and they can't find enough food.