Giúp nhanh với ạ cảm ơn nhiều ạ

$11. $ We haven't met each other for a long time

$→$ It's + time + since + S + (last) + Ved/V2 (Đã bao lâu kể từ lần cuối ai đó làm gì)

$=$ S + have/has + not + Vpp + for + time

$12. $ How long have you had this computer?

$→$ How long + have/has + S + Vpp?

$→$ When + did + S + V-bare?

$13. $ I haven't had such a delicious meal before

$→$ This is the first time + S + have/has + Vpp (Lần đầu tiên làm gì)

$=$ S + have/has + never (not) + Vpp + before

$14. $ The last time I went to work was a month ago

$→$ The last time + S + Ved/V2 + was + thời gian (Lần cuối cùng làm gì)

$=$ S + have/has + not + Vpp + since/for + time

$15. $ It is 5 days since I last talked to him

$→$ It's + time + since + S + (last) + Ved/V2 (Đã bao lâu kể từ lần cuối ai đó làm gì)

$=$ S + have/has + not + Vpp + for + time

$16. $ We haven't celebrated Christmas for 2 years

$17. $ The last time Linda had her teeth checked was last year

$→$ The last time + S + Ved/V2 + was + thời gian (Lần cuối cùng làm gì)

$=$ S + have/has + not + Vpp + since/for + time

$18. $ Michelle has collected stamps since 2015

$→$ S + began/ started + Ving/to V + time ago (Bắt đầu làm gì)

$=$ S + have/has + Vpp + for/since + time

$19. $ How long have they opened this shopping center?

$→$ How long + have/has + S + Vpp?

$→$ When + did + S + V-bare?

$20. $ The last time I came to the zoo was a year ago

$→$ The last time + S + Ved/V2 + was + thời gian (Lần cuối cùng làm gì)

$=$ S + have/has + not + Vpp + since/for + time