后来卡伦把本带回家了。从那之后,这个新家庭充满了幸福和欢笑。
Later Karen brought Ben home. Ever since then, the new family have had ____ and laughter.
答案
happiness
知识点:名词的用法

幸福happiness,happiness为不可数名词,用原形即可,故正确答案为happiness。

略
