1.I have been volunteer for five years.

2.Last week,my class was volunteer clean the street.

3.I feel more confident after participate the volunteer work.

4.My brother has ever donated blood three times before.

5.Every year,we collect old books and clothes to help poor children in the mountain areas.

EX2:REwrite

1.This is the first time i have seen him

=>I have never seen him before

2.I started studying english 3 years ago

=>I have studided English for 3 years.

3.I haven't seen him since i left school

=>I last saw him when i am at school.

4.It started raining two days ago.

=>It has rained since two days ago.

5.I have never seen such a beautiful girl before

=>She is such beautiful girl i have ever seen.

6.We have never had such a cold winter

=>It is such a cold winter i have never got

7.The last time she kissed me was 5 months ago

=>She hasn't kissed me for five months.

Có đôi chỗ sai nên bn thông cảm n

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1. I have never seen him before.

2. I have studied English for 3 years.

3. I last saw him when I left school.

4. It has rained for two days.

5. She is the most beautiful girl I have ever seen.

6. It is the first time we had such a cold winter.

7. She hasn't kissed me for 5 months.

1/

1. I have done volunteer for five years. (Không chắc)

2. Last week my class did volunteer work by cleaning the street.

3. I feel more confident after participating volunteer works.

4. My brother has ever donated blood three times before.

5. Every year we collect old books and clothes to help the poor children in the mountainous areas.