1. We started learning English 10 years ago

2. We haven't met for a long time

3. It has been 4 years since Ms Ann last took part in any activities 

4. The last time I met my family was last Christmas 

5. When did you live here?

6. The volunteers started providing free food and fresh water to homeless people yesterday 

7. It has been 2 days since the doctor quitted his job in the local hospital and moved to central hospital 

8. The last time the children had a long vacation was last year

9. It has been 3 months since they last visited their parents

10. We have broken up for 2 years

chuyển các câu sau từ thì hiện tại hoàn thành sang thì quá khứ đơn sao cho nghĩa cảu câu không thay đổi.​
1. We have learned English for 10 years ⇒ We started learning English 10 years ago. 

2. It has been a long time since we last met ⇒ The last time we met was a long time ago.

3. Ms. Ann hasn’t taken part in any voluntary programs for 4 years.

⇒ The last time Mr.s Ann took part in many voluntary programs was 4 years ago.

4. I haven’t mer my family since last Christmas.

⇒ The last time I met my family was (the) last Christmas.

5. How long have you lived here? ⇒ When did you start living here ?

6. The volunteers have provided free food and fresh water to homeless people since yesterday.

⇒ The volunteers provided free food and fresh water to homeless people yesterday. 

1. We started learning English 10 years ago

2. We haven't met for a long time

3. It has been 4 years since Ms Ann last took part in any activities 

4. The last time I met my family was last Christmas 

5. When did you live here?

6. The volunteers started providing free food and fresh water to homeless people yesterday 

7. It has been 2 days since the doctor quitted his job in the local hospital and moved to central hospital 

8. The last time the children had a long vacation was last year

9. It has been 3 months since they last visited their parents

10. We have broken up for 2 years