Question

The minister came here to deliver a lecture (Turn it into interrogative)

Answer 1

Hey ! 


Here's your Answer ↓


1) The minister came here to deliver a lecture ( declarative sentence)

⇒ Did the minister came here to deliver speech ?

              Question with auxiliary verbs 
 
⇒ The minister came here to deliver a lecture,Didn't he ?

                 Question tag type of question 


Hope this helps you 

Answer 2

Answer:

Did the minister come here to deliver a lecture?

This is the right answer.

Hope it will help you.