Sửa lỗi sai 1.We not spent our summer holiday in Da Lat last year . 2.My brother often has a three-weeks summer vacation 3.Does Nam has less stamps than Viet? 4.Chi usually spends two hours to do her homework every morning 5.What were you bye at the souvenir store yesterday?

1.We not spent our summer holiday in Da Lat last year .

=> didn't spend

2.My brother often has a three-weeks summer vacation

=> three-week

3.Does Nam has less stamps than Viet?

=>fewer

4.Chi usually spends two hours to do her homework every morning

=>doing

5.What were you buy at the souvenir store yesterday?

=>did