Reflect on Grammar Question Word (Wh) Auxiliary Verb Subject Main Verb (base form) Complement Answer Who (subject, doer) invented the printing press?
Reflect on Grammar Question Word (Wh) Auxiliary Verb Subject Main Verb (base form) Complement Answer Who (subject, doer) invented the printing press? Johannes Gutenberg invented the printing press. What (object, action) Karl Benz Karl Benz invented the motor car. Where (place) Fleming ? When (time) Thomas Alva Edison the electric lighting system? Why (reasons and purpose) work on the electric lighting system? To make it efficient for humanity.