Giúp mình giải với công thức giải cho mình với ạ

`Đáp` `án:`

3. This is the first time I have met such a kind girl.

4. My father has worked in this company for ten years.

5. She hasn't contacted her son for five weeks.

6. How long has your sister learnt French?

7. I haven't seen John since he left for Edinburgh.

8. John has worked as a television presenter for five years.

9. When did your family read the Tuoi Tre Newspaper? 

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Các công thức đổi HTHT - QKĐ

Type 1: 

S + has/have + not + V3/ed + for/since + time 

--> S + last + V2/ed 

--> The last time + S+ V2/ed + was + time + ago

--> It is / has been + time + since + S+ (last) + V2/ed 

Type 2: 

How long + has/have + S+ V3/ed?

--> When + did + S + V1?

--> How long is it + since + S+ V2/ed ?

--> How long ago + did + S + start / begin + to V / Ving? 

Type 3:

S + has/have + V3/ed + for/since + time 

--> S + started / began + to V / Ving 

--> It is / has been + time + since + S+ V2/ed 

Type 4: 

S + has/have + not/never + V3/ed + ... before

--> This/It is the first time + S+ has/have+ V3/ed