1．Next Sunday I will go to visit the place ____________ I was born．
答案：where
2．The man lived in an old house ____________ which there was little light．
答案：in
3．The book the cover ____________ which is nice has attracted many girls．
答案：of
4．As a matter of fact, the boy is ____________(careful) than his brother．
答案：more careful
5．This line is three times as long ____________ that one．
答案：as
