khẳng định +  phủ định -
1 he wrote a book
(+)
(-)
2 she way my bors
(-)
(?)
3 (+)
(-) they didn't build a new house
(?)
4 (+)
(-) I wasn't  at the concert lát sunday
(?)
5 (+)
(-)
(?) did you by clother in this clothes shop
6 (+)
(-)
(?) were they born in korea ?
7 (+) he swam in the lake
(-)
(?)
8 (+) we were at the gym last week
(-)
(?)
9 (+)
(-) she didn't go to her of fice by car
(?)
10 (+)
(-) he wasn't a good buy
(?)