Question

the man knows my name(complex)

Answer 1

$\bold{Question :}$

The man knows my name.

( Turn it into a Complex Sentence )

$\bold{Answer :}$

The man knows what my name is.

Here, adding 'what' in the answer with a new phrase make the sentence a Complex one.

#$\bold{MarkAsBrainliest}$

Answer 2

the man knows what my name is