think about it还是think it about

think about it对
因为是动词加介词构成的短语,宾语无论是代词还是名词,都放在介词后
但是动词加副词构成的短语,宾语如果是代词it或 them,放在动词和介词之间,如give it up放弃它giveup中的up不是介词吗，哪里有副词?giveup中的up不是介词,是副词还有pick up 中，up也是副词，所以pick it/them up