Complex Sentence

Identify the complex sentence -

'I know that he will come here soon'- The sentence is a ____

What kind of sentence is-'Fight till you die'?

Unemployment is a state for a man having no work to earn money. (Complex)

The tea is too hot for me to drink. (Make it Complex)

Find out the complex sentence.

Though, although, because, since, as' implies the-

This is the act that a wise man does. This sentence is a -

I know their residence (make it complex)

Identify the correctly transformed sentence of “The mangoes are too cheap to be good”.

When I was reading a book, he came. It is a ____.

We eat to live. (complex)