what is going on?等于什么?One day he was taking a walk in the park when he s_______some boys standing around a small cat .They were talking loudly .The old man went up to the boys and asked what was h_______
问题描述：
what is going on?等于什么?
One day he was taking a walk in the park when he s_______some boys standing around a small cat .They were talking loudly .The old man went up to the boys and asked what was h_______
答
What happened 发生什么了
答
what happened? 发生什么事啦？
答
What's happening?
What's coming out?