1.(-) We didn't our exercise this morning

(?) What did we do this morning?

2. 

(-) The hotel wasn't too expensive

(?) Was the hotel expensive?

3.

(-) I didn't have a bicycle when I was young

(?) Did you have a bicycle when you were young?

4. 

(-) The children didn't go to the zoo yesterday

(?) Did the children go to the zoo yesterday?

5.

(-) Ernie didn't eat the last doughnut

(?) Did Ernie eat the last doughnut?

6.

(-) They didn't buy a new house last month.

(?) Did they buy a new house last month?

1. 

(-) we didn't do our exercise this morning

(?) did we do our exercise this morning

2. 

(-) the hotel wasn't very expensive

(?) was the hotel very expensive ?

3.

(-) i didn't have a bicycle when i was young

(?) did you have a bicycle when you was young ?

4. 

(-) the children didn't go to the zoo yesterday

(?) did the children go to the zoo yesterday

5.  

(-) emie didn't eat the last doughnut

(?) did emie eat the last doughnut

6.

(-) they didn't buy a new house last month

(?) did they buy a new house last month ?