Question

what a great thing you have done for me!(assertive sentence)​

Answer 1

Answer:

Assertive sentence:-

You have done a great thing for me.

Answer 2

Question : What a great thing you have done for me! (Make it assertive)

Answer :

You have done a great thing for me.

Note :

In order to transform an exclamantory sentence into an assertive sentence, we need to find the subject, the main verb which will show the mode of action and the object as acted by the subject. Then we can write the form S V O for the required sentence.