Make one sentence from two. Use who, which, that, where

VII. Make one sentence from two. Use who/ which/ that/ where …..
1. I went to see a doctor. She had helped my father I went to see the doctor ___________________
2. A woman wrote to me. She wanted my advice The woman ______________________
3. Mary was wearing the red dress. It was made in France Mary was wearing the red dress ______________ 4. We stayed at Sofitel hotel. Mark recommended it to us We stayed at Sofitel hotel ___________________
5. John is one of my closest friends. I have known him for three years John is one of my closest friends ______________
lm hết bài, bao gồm câu 1,2,3,4,5. mỗi câu pk giải thích các bước giải chứ ko pk là ghi đáp án ko. ghi đáp án ko thì đừng vào trl '-' vì tôi cần giải thích