:1) Mary entered the University last year.
Did Mary enter the University last year?
When did Mary enter the University?
Mary entered the University last year, didn't she?
Did Mary enter the University or the college last year?
2) The man domesticated the dog many years ago.
Did the man domesticate the dog many years ago?
When did the man domesticate the dog?
The man domesticated the dog many years ago, didn't he?
Did the man domesticate the dog or the cat many years ago?
3) My parents left for Paris last Thursday.
Did your parents leave for Paris last Thursday?
Where did your parents leave for last Thursday?
Your parents left for Paris last Thursday, didn't they?
Did your parents leave for Paris or for London last Thursday?
4) The pupils of our class raked all the leaves near the school last autumn.
Did the pupils of our class rake all the leaves near the school last autumn?
Who raked all the leaves near the school last autumn?
The pupils of our class didn't rake all the leaves last autumn, did they?
Did the pupils of our class rake all the leaves last autumn or last spring?
5) We watered the flowers two days ago.
Did we water the flowers two days ago?
When did we water the flowers?
We watered the flowers two days ago, didn't we?
Did we water the flowers two or four days ago?
6) Bob promised to give up smoking two months ago.
Did Bob promise to give up smoking two months ago?
What did Bob promise two months ago?
Bob promised to give up smoking two months ago, didn't he?
Did Bob or Peter promise to give up smoking two months ago?
7) In the summer Peter played tennis twice a week.
Did Peter play tennis twice a week in the summer?
How many times a week did Peter play tennis in the summer?
Peter played tennis twice a week in the summer, didn't he?
Did Peter play tennis or football twice a week in the summer?
8) The policeman stopped Harry on his way home last night.
Did the policeman stop Harry on his way home last night?
Whom did the policeman stop last night?
The policeman stopped Harry on his way home last night, didn't he?
Did the policeman stop Harry or John on his way home last night?
9) We invited them to the party last week.
Did we invite them to the party last week?
Where did we invite them last week?
We invited them to the party last week, didn't we?
Did we invite them to the party last week or month?
10) He took the book from the library yesterday.
Did he take the book from the library yesterday?
When did he take the book from the library?
He took the book from the library yesterday, didn't he?
Did he take the book or a journal from the library yesterday?
11) That boy broke my window last night.
Did that boy break your window last night?
When did that boy break your window?
That boy broke your window last night, didn't he?
Did that boy break your window last night or last week?
12) Ann met me at the airport an hour ago.
Did Ann meet you at the airport an hour ago?
Who met you at the airport an hour ago?
Ann met you at the airport an hour ago, didn't she?
Did Ann or Peter meet you at the airport an hour ago?