填空题

【参考答案】

they→it
<上一题 目录 下一题>
热门 试题

填空题
which→whom
单项选择题
Laughing has positive effects on people’s health because ______.
A．it can produce more hormones.
B．it can accelerate their pulse.
C．it can raise their blood pressure.
D．it can help them relax.
相关试题