Question

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.

Answer 1

auxiliary verb      
did
did
did
did

Subject
Karl benz
Fleming
Tomas alva edison
Tomas alva edison

MAIN VERB BASE FROM
Invented
¿invented?
discover
build
word

Complement
the printng press
penicillin

ANSWER 
in englad 
in 1879