b1 : tìm và sửa lỗi sai

1, i haven't cutted my hair since last june

2, the lesson haven't started yet

3, has the cat eat yet ?

4, i am worried that i hasn't still finished my homework yet

5, i have just decided to start working next week

6, my father hasn't playedany sport for last year

b2 , chia động từ

1, i ..... just (realize) ...... that there are only four weeks to the end term