Chuyển những câu sau sang câu chủ động

chuyển những câu sau sang câu chủ động
-Don’t let him be left alone!
-My brother helped me to find the answer to this question.
-My computer needs to be repaired
-I want to be taught by you.
-I remembered being offered a beautiful present by best friends on my birthday
- I have my hair cut by sb
-I like this dress being worn by you.