1. I have learnt English for four years

2.Something abour the air pollution should be done 

3.Mary spent two hours to complete the assignments last week

4.I'd rather stay at home than go out in this wet weather

5.I was taken to the cinema by my parents when they had free time 

1.I have learnt English for four years.

2.Something should be done about the air pollution.

3.Mary spent 2 hours traveling to the country side last week.

4.I'd rather stay at home than go out in this wet weather.

5.I go to the cinema when my parents had free time.