Change the following sentence from simple to complex.

Ravi knows the importance of exchanging ideas.

Change the following sentence from simple to complex.

Yamunotri is 3,322 meters above the sea-level, located on the western bank of the great peak of Banderpunch.

Change the following sentence from simple to complex.

He was given the best medical treatment, but his condition steadily grew worse.

Change the following sentence from simple to complex.

I saw an old man.

Change the following sentence from complex to simple.

I gave no sign that I had noticed the man.

Change the following sentence from complex to simple.

Dad announced that I would start lessons the following week.

Change the following sentence from complex to simple.

Why it stopped at Deoli, I don't know.

Change the following sentence from complex to simple.

She saw that I was looking at her intently.

Change the following sentence from complex to simple.

When I saw her walking up the platform, I sprang off the footboard.