Срочноооо. Образуйте сложноподчиненые предложения, используя слова when, if, as или...

Question

Срочноооо. Образуйте сложноподчиненые предложения, используя слова when, if, as или because .
1.I knocked at the door. Susan opened it
2.Mr.Priestly saw me. He came forward to meet me.
3. We sat near the fire. The evening was cold
4. I was rather tired. I went to bed early.
5. You are not warm enough. Put on the eiderdown

Answer 1

1. When I knocked at the door, Susan opened it
2. When Mr. Priestly saw me, he came forward to meet me.
3. We sat near the fire as the evening was cold
4. I went to bed early because I was rather tired.
5. You are not warm enough if you do not put on the eider down.