下列各句中，加横线的词语运用不正确的一项是（ ）

Joanna is no less hardworking than her twin sister, _______ she failed in the final exam

The good thing about children is that they very easily to new environments.

He isn’t a teacher and his brother isn’t a teacher, either. —You mean neither he nor his brother . a teacher, right

Writing has ________ much of my spare time, but it has given me a great deal of pleasure.[ ]