các b có thể cho mk 3 câu ví dụ về Thì Qúa Khứ Đơn
-He didn't play football yesterday
+He played football yesterday
?Did he play football yesterday?
(+) I did my homework yesterday.
(-) He didn't return the book to the library last week
(?) Did they go camping last month?
+ i played football yesterday
- i did not play football yesterday
? Did you play football yesterday