急 求此英语语法题的答案

是 pseudo-cleft sentence意思就是把宾语提前,用be作谓语,然后原来主语作为从句部分。所以是 ：These are what the students are going to write。比如：USA invaded Iraq。pseudo-cleft形式就是：It was Iraq which USA invaded。再比如：The Batman has arrested the Joker。pseudo-cleft形式就是:It is the Joker whom the Batman has arrested。pseudo-cleft中文是什么我也不知道~你明白怎么改就行了^^