WRITE ABOUT A PAST SITUATION IN YOUR LIFE
I  Blank a:  write a sentence about a past situation (with the correct past tenses) using the relative pronouns "qui," "que," or "dont."  (Relative Pronouns Review)
Blank b. r ewrite the sentence in blank a. but use a demonstrative pronoun -- "celui," "celle," "ceux," "celles" -- to replace the antecedent of the relative pronoun (the noun preceding the relative pronoun),

Example: 
a.  Je voulais emprunter la voiture dont tu avais parlé. ("the car you had spoken about")
b.  Je voulais emprunter celle dont tu avais parlé. ("the one you had spoken about")

Use a different relative pronoun (dont, qui, que)  in 1., 2., and 3.

1.a.

b. 

2. a. 

b.  

3. a.  

b.  

II. Blank a:  write a sentence about a past situation (with the correct past tenses) using a noun  + "de" + noun to express possession. 
b.  Blank b:  rewrite the sentence using a demonstrative pronoun ("celui," "celle," "ceux," "celles") + "de" + noun.

Example:
a.  Vous a-t-il presenté l'ami de Pierre?  ("Pierre's friend")
b.  Vous a-t-il presenté celui de Pierre?  ("Pierre's")

Use a different demonstrative pronoun (celui, ceux, etc.) in 1., 2., and 3.

4. a.

b.

5. a.

b.

6. a.

b.