Questions in the Simple Past

1) Questions without question words in the Simple Past

Auxiliary	Subject	Verb	Rest	Yes/No	Subject	Auxiliary (+ n't)
Did	Max	play	football?	Yes,	he	did.
				No,	he	didn't.
Did	you	watch	the film yesterday?	Yes,	I	did.
				No,	I	didn't.

BUT:

to be	Subject	xxx	Rest	Yes/No	Subject	Auxiliary (+ n't)
Were	you		in Leipzig last week?	Yes,	I	was.
				No,	I	wasn't.

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2) Questions with question words in the Simple Past

Question word	Auxiliary	Subject	Verb	Rest	Answer
What	did	you	do	yesterday evening?	I did my homework.
When	did	she	meet	her boyfriend?	She met him yesterday.
Where	did	they	go	after the match?	They went to a café.

BUT:

Question word	to be	Subject	xxxxx	Rest	Answer
Where	were	you		yesterday?	I was at the cinema.