`1.` I don't know the woman whose son broke my windows yesterday.
`2.` The most intelligent students here whom we met at the meeting yesterday are from Japan.
`3.` Mr. Brown, who is only thirty, is the manager of our company.
`4.` The opportunity to which she owed her success came unexpectedly.
`5.` The man to whom I spoke gave me good advice.
`6.` The girl to whom I'll introduce you is Helen.
`7.` Peter is the first person to be interviewed this morning.
`8.` I recently went back to Paris, in which I was born 30 years ago.
`9.` That man over there whose name I don't know is an artist.
`10.` My school has 30 computers, most of which are second-hand.
`11.` The car for which I have searched since last year was made in Japan.
`12.` Opposite our house there is a nice park where there are some beautiful trees and flowers.
`13.` The person to whom you should talk about your problems is sitting at the desk.
`14.` Mr. Edwards, whose health hasn't been good recently, has gone into the hospital for some tests.
`15.` Do you see those letters that came yesterday evening?
`16.` The psychologists who study the nature of sleep have made important discoveries.
`17.` I'll take you to Dalat, where you can enjoy fresh air.
`18.` I don't know the reason for which she was sacked.
`19.` You are the first person to have won the first prize at Physics in my school.
@ `Ly`
