EX2: Viết các câu sau ở thể khẳng định (+), thể phủ định (-), thể nghi vấn (?) ở thì quá khứ đơn.
1. (+) They decided to leave soon.
(-)
(?)
2. (+)
(-) There were not many homeless people here ten years ago.
(?)
3. (+)
(-)
(?) Did Tom’s grandfather use to be a soldier?
4. (+) My teacher started teaching here 6 years ago.
(-)
(?)
5. (+) Jane often went to school on foot 3 years ago.
(-)
(?)
6. (+).
(-) The cat didn’t want to eat yesterday.
(?)
7. (+)
(-)
(?) Did the train arrive late yesterday?
8. (+).
(-) There wasn’t anything left in the fridge.
(?)