$@natalielewis$
$#Bài 1$
1. which
2. which
3. who / whom
4. who / whom
$#Bài 3$
1. The lesson which I had yesterday was very difficult.
2. The man who is standing there is used to live next door to us.
3. Have you read the book which Jane gave you yet?
4. That was the first thing which I did at the meeting.
5. The principal speaker who is talking to Linda was very brilliant.
6. The house which I came to last morning has a very interesting story.
7. Everyone who joined the concert always speaks very highly of him.
8. The part which Logan had was the third one
9. Is that the same fellows who ran in the rain this afternoon?
10. The organization which called Skycrap offer scholarship every year.
