We are (enjoying yourself).对括号内的部分进行提问.答 we are.
We are (enjoying yourself)的意思是我们玩的很愉快,对括号内的部分提问.而你给的答案what are you doing?的意思是你在做什么?两句话对应起来好象不通顺啊!希望赶快回复!