WHAT DO YOU THINK IS HAPPENING IN EACH PICTURE中,是 DO YOU THI

还原句子,应该是you think what is happenning in each picture.主句应该是what is happening in each picture?所以do you think 才是插入语!
再问： 那为什么不就直接用YOU THINK ...，用WHAT DO...有什么不同，更好吗?
再答： 英文习惯就是这样的，中文意思是你认为这···怎么样？ 表示遵循对方的意见 比如看完一场电影，对方问：what do you think of it?/ what do you think about the movie? /what do you think is the best ending about the film? 你认为这电影最好的结局是什么？ 个人认为不用在语法上纠结太多，不过你的钻研精神还是值得鼓励的！