`1.` The letter which our sister is reading is from London.
`2.` She wears the uniform which was made last week.
`3.` The boy who is watching TV is my friend.
`4.` The man who was here yesterday is our teacher.
`5.` The man whose car you are driving is very young.
`6.` The librarian whose daughter is nice is kind to us.
`7.` This is my house whose roof is red.
`8.` That day, when we spent our holiday there, was beautiful.
`9.` I suggest you the time when you can meet your director.
`10.` The building in which he lives is very old.
@ `Ly`
