的㊀ possessive='s
(my, theirs, whose? Sam's....)
(1) I don't know her birthday.
(2) Our school is not very big.
(3) This is whose book bag?
(4) 林山's bedroom is blue.
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㊁ more than one 的, keep only the last one.
(1) My grandma's car is white.
(2) Mary is his friend's English teacher.
(3) Do you know her father's office?
(4) That is Lisa's younger sister's classmate.
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㊂ A of B = B 的 A
(1)(The) blackboard of (the) classroom.
(2)Do you know (the) name of her school?
(3)Can you give me (the) phone number of your office?
(4)(The) clothes of this shop are beautiful and cheap.
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㊃ A who/that B = B 的 A
(1)Many Indians (who) live in Taipei speak Chinese well.
(2)Foreign students (who) come to Taiwan to learn Chinese are many.
(3)Those people (who) ride bike in the park are my friends.
(4)You can't use the computer (that) on my desk.