sat 语法题used to challenge or abolish平行还是used to challenge or to abolish平行?为什么我觉得是第二个,但是答案是第一个

来源：学生作业学帮网编辑：学帮网时间：2024/05/15 09:33:17

前面还有一个be动词吧?be used to习惯于,后面的两个被习惯的动作／行为平行.所以是第一个.
如有问题,欢迎继续追问：）

used to do sth.表示过去习惯做某事，to 后面用动词原型，根据这个短语，abolish 应该是和challenge平行，否则按照时态关系，abolish应该用过去时。所以我同意你的看法。

用 or 连接的两个平行的不定式，不必都带 to，一般省略第二个不定式的 to 。

英语中多数省略平行中第二个to do 中的to，比如I like to sing and dance. 记住这个点就好。

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sat 语法题used to challenge or abolish平行 还是used to challenge or to abolish平行?为什么我觉得是第二个,但是答案是第一个