【推荐1】Monarchs (黑脉金斑蝶) are the only butterflies known to make two-way migrations, as birds do. In the late summer and early fall, the butterflies typically leave southern Canada and northern and central regions of the United States. They make a dangerous trip to Florida and Mexico, _______ the weather is warmer. (用适当的词填空)

【推荐3】It was a big deal for us to load up and go to the local library, __________my kids could pick out books to read or books they wanted me to read to them. (用适当的词填空)