$5.$ I have written blog for two years.

$7.$ Mary has done this search since she was in high school.

$8.$ It is 5 years since Lan last played the guitar.

$9.$ My father has done the gardening at 4 o'clock.

$10.$ We began decorating the house last year.

S + started/began + V_ing/to + V + last + time/time + ago.

→ S + have/has + V3 + for + khoảng thời gian/since + thời gian đã được xác định.

S + have/has + V3 + for + khoảng thời gian/since + thời gian đã được xác định.

→ It is + time + since + S + last + V(quá khứ).

`\color{cyan}{\text{@Bulletproof Boy Scout}}`

5. I have written blog for 2 years.

7. Mary has done this research since she was in high school.

8. It is 5 years since Lan played guitar.

9. My father has done the gardening since 4 o'clock.

10. We began to decorate the house last year.

 Có sai sót mong thông cảm ạ!