题目内容：

enjoying himself.(改为同义句) Everyone is（ ）a good ( ).

优质解答

having , time

追问：

请问为什么用 having a good time 呢？

追答：

have a good time = enjoy oneself 玩得开心，过得愉快


原句是现在进行时be doing ，故改为同义句时也要用现在进行时，即 having a good time