At the time of research, the middle floor and its.

A. We've done a lot of research in the last few years and we do have programs under development.

After six months of research, she was ready to give up.

Where are our power companies in terms of research and development?

I put a lot of thought and research into them.

She'd been doing a lot of research in the last several days.

He's been doing a lot of research for me off the field.

We need to be the center of research and development.

I had to cut myself off from the world of further research.

He has also done a good deal of research since then.