To change sentences into interrogative sentences, we will rearrange the words into a form that asks a question. Here is how each sentence can be transformed:
'The frog who to school look?' can be changed to: 'Did the frog look to school?'
'That trip about what is?' can be changed to: 'What is that trip about?'
'Did cook for Brad diner?' can be changed to: 'Did you cook dinner for Brad?'
'Like who to eat grapes?' can be changed to: 'Who likes to eat grapes?'
'Dib Greg drop what floor on the?' can be changed to: 'What floor did Greg drop the dib on?'
In each of these examples, the sentence has been rearranged to start with a question word or include a verb at the beginning, which helps make it clear that a question is being asked. The goal in creating interrogative sentences is to rearrange the words so that the question being asked is clear and understandable.