1(+) She was my boss.
(-)
(?)
2(-) I wasn't at the concert last Sunday.
(+)
(?)
3(?) Did you buy clothes in this clothes shop?
(+)
(-)
4(?) Were they born in Korea?
(+)
(-)
5(+)we swam in the lake
(-)
(?)
6(+)we were at the gym last week
(-)
(?)
7(-)she didn't go to her office by car
(+)
(?)
1, (-) She wasn't my boss
(?) Did she is your boss?
2, (+) I was at concert last Sunday
(?) Did you at the concert last Sunday
3, (+) Yes , I did
(-) No , I didn't
4, (+) Yes, They were
(-) No, They won't
5, (+) We didn't swim in the lake
(?) Did you swim in the lake?
6, (-) We won't at the gym last week
(?) Did you at the gym last week?
7, (+) She went go to the office by car
(?) Did she go to the office by car?