题目内容
People are using laughter to improve their ____________.
| A. health |
| B. healthy |
| C. healthily |
| D. healthier |
A
their 是形容词性物主代词,后接名词。
练习册系列答案
相关题目
题目内容
| A. health |
| B. healthy |
| C. healthily |
| D. healthier |