Past Simple.I went to school.I wanted new mobile phone.They asked my teacher on the lessons.We went to another country.I was at home at five hour.Present Perfect.I have had good results exam because I worked hardly.They have eaten good food in resteraunt because they got paid.I have bought new skirt because it was on sale.He has bought old car because he has enough money.I have liked boy whose he was on my birthday.
