What's happening?He ______ (keep laughing) all the time.用括号内词组的适当形式填空

what's happening there （What's happening? what's happening()you?（介词填空） What's happening?的同义句? What's happening now tom is singing i wonder what's happening是什么意思 what's happening on ^可能是什么时态 What's happening?He ______ (keep laughing) all the time.用括号内词组的适当形式填空 What happened与What's happening的区别 What's happening?和What are you doing? 翻译what's wrong?you should describe what happening what was happening?happening词性 He didn't know what was happening outside,为什么happening是进行时? it appeared that he didn't know what was happening=he()()to know what was happening He demanded that we explain what was happening,________?为什么不是He demanded that we explained what had been happening,---? What‘s happening?Could you tell me?改宾语从句 What's happening to the forests in the world? What's happening with you these days的答语是什么