--Aren’t we living a happy life?
--You should not be content with what you have. , you must be better in every aspect of your life.
A. What’s more
B. On the one hand
C. In other words
D. Believe it or not
网友回答
A. What’s more
B. On the one hand
(答案→)C. In other words
D. Believe it or not
解析：句意：--难道我们过的生活不幸福吗？--你不应满足于现状，换句话说，你必须在每个方面都做的更好。What’s more而且；On the one hand一方面；In other words换句话说；Believe it or not信不信由你。根据句意故选C。