Ⅰ.单句语法填空
1．(2019·全国卷Ⅱ)Irene said, “I don't see any reason to give up work. I love coming here and seeing my family and all the friends I have made over the years. I work not because I have to, but because I want to.”
解析：考查固定搭配。分析句子结构并根据句意“我工作不是因为我不得不工作，而是因为我想工作”可知使用了固定搭配“not...but...不是……而是……”。
2．(2016·四川卷)It was time for her to have a new baby，and it was also time for the young panda to be independent.
解析：根据语境可知，“It was time for...”和“it was also time for...”之间是并列关系，故用and连接。
