填空题

Laughter is a social glue that ______ our relations.

【参考答案】

strengthen
<上一题 目录 下一题>
热门 试题

填空题
A child of one and an old man laugh to show their ______ of anxiety.
填空题
Laughter is a defense mechanism when reality is too hard or if we hear ______.
相关试题