Looking on the internet deeply has found these results:

What is it that you did to address the issue is the most popular phrase on the web.

What is it that you have done to address the issue 11,020,000,000 results on the web	What is it that you did to address the issue 11,430,000,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
And I'm grateful for all that you have done. Our group thinks that you have done some good work as President of the Convention. Tell me what it is that you have done. I've been reading all that you have done. All the things that you have done. I said that you have done this with great skill, and you agreed. I am pleased with the surveying work that you have done. I will expose everything that you have done.	What is the Commission doing to address this issue? ITTA 2006 falls well short of what is required to address the problem of the loss of tropical forests. Consequently we must question the Council's sincerity in seeking to address what is a major area of concern throughout the European Union. I am not satisfied so far that what is being proposed is, in fact, going to address those concerns. Governments need to do what is necessary to address this. It should be recognised that the outcome falls well short of what is required to address the problem of loss of tropical forests. Mr President, a minute is very little to address what is a huge subject. What is the Commission doing to address this issue?

What is it that you have done to address the issue

11,020,000,000 results on the web

What is it that you did to address the issue

11,430,000,000 results on the web

More popular!

And I'm grateful for all that you have done.
Our group thinks that you have done some good work as President of the Convention.
Tell me what it is that you have done.
I've been reading all that you have done.
All the things that you have done.
I said that you have done this with great skill, and you agreed.
I am pleased with the surveying work that you have done.
I will expose everything that you have done.

What is the Commission doing to address this issue?
ITTA 2006 falls well short of what is required to address the problem of the loss of tropical forests.
Consequently we must question the Council's sincerity in seeking to address what is a major area of concern throughout the European Union.
I am not satisfied so far that what is being proposed is, in fact, going to address those concerns.
Governments need to do what is necessary to address this.
It should be recognised that the outcome falls well short of what is required to address the problem of loss of tropical forests.
Mr President, a minute is very little to address what is a huge subject.
What is the Commission doing to address this issue?