The debate over bilingual education centers on the issue of whether the United States should forster

题目

The debate over bilingual education centers on the issue of whether the United States should forster the idea of a single common language,an idea,some believe,that has in the past (been crucial in binding diverse constituencies together.)
在这里我想问,be crucial to bind diverse constituencies together可不可以呢?be crucial in doing是习惯用法么?什么时候用be crucial in doing?什么时候用be crucial to do?

答案

正常情况下,to do 优先于 for doing
在这里,crucial是固定搭配
be crucial to sb/sth
in doing sth
遇到这种题,我也没办法,我也会选to do 的.