试题题干
Not only ——— provide students with useful products and service they need, but they also assist ——— establishing the credit that’s essential to financial independence.
参考答案
正确答案：
试题解析
1.not only 位于句子开头，要用部分倒装 此句一般现在时，要用助动词do 帮助构成倒装。
eg。Seldom do I eat out。意思相当于 I seldom eat out
2.assist （ sb）in doing sth 帮助sb做sth
assist sb in/with sth