1. we ran out of gas because we didn't stop at the service station
-> If we had stopped at the service station, we wouldn't have run out of gas 
2 " if i had any money , i'd buy you a drink , " she said to me
-> she told me that if she had any money, she would buy me a drink 
3 " if i catch the plane , i'll be home by five , " he said
-> he said that if he caught the plane, he would be home by five 
4 " if i'd had my mobile yesterday , i could have contacted you , " Yeri said
-> Yeri told me that if she had had her mobile the previous day, she could have contacted me
5 " would you mind giving me a hand ? " Mary said to me
-> Mary told me to give her a hand 
6 " if i were you , i wouldn't send this information to her , " Jisoo said to Nayeon
-> Jisoo advised Nayeon not to send that information to her