$\text{1. _whose_}$
$\text{2. What's the name of the man whose car you borrowed?}$
$\text{3. I like reading the poems, the author of which is Xuan Dieu.}$
$\text{4. My dictionary, the cover of which is blue, is not very good.}$
$\text{5. Tuan, whose uncle is a pilot, has just won the second prize in the English contest.}$
$\text{6. The film is about the king whose ambition was to rule the world.}$
$\text{7. This is Mr. Smith, whose son Bill plays in our team.}$
$\text{8. Romeo and Juliet whose parents hated each other were lovers.}$
$\text{9. The dress, color of which is purple, is lovely.}$
