Rewrite the sentences using I wish or if only 1) If want to improve my English but l'm not sure how If only _____________________2)If was such a pity that you missed the concert If only ______________?

Rewrite the sentences using I wish or if only 1) If want to improve my English but l'm not sure how If only _____________________ 2)If was such a pity that you missed the concert If only ______________________ 3)If want them to stop teasing me about my accent I wish____________________ 4)She doesn't like her brother listening to music so loudly She wished ________________ 5) I want him to stop texting me every two minutes If only ___________________​.