这句话的语法有无错?

题目

这句话的语法有无错?
He was not only very inquisitive,but he frequently offered intelligent opinions as well.
如错请改正

答案

He was not only very inquisitive,but also frequently offered intelligent opinions .说明：not only 和but also 连用 是“不仅.而且.”的意思；主语在这个短语之前时（如该句）,只用一个主语就行,本句中第二个he...