Sử dụng động từ Thì hiện tại hoàn thành ở dạng khẳng định hoặc phủ định (dấu hiệu là từ yet - vẫn chưa).
6. The train ______________.We can go out now. (stop)
7. She isn't ready .She_____________her case yet.(pack)
8. She ____________some photos.(take)
9. Sally _______________yet.Where can she be ?(arrive)
10. I_________________never____________to your mother.(speak)
11. I______________________________ which shoes to buy.(decide)
12. My father _______________to Rome. (drive)
13.My mum isn't at home now.She _________________(go)to the supermarket.
14.So far this month I ________________(see) three films.
15.I'm hungry.I______________(have) my lunch yet.
16. I_______________(see) Helen yet today . Is she at school?
17. I don't know your boy-friend. I ________________(meet) him yet.
cảm ơn các bạn