1. ---Is this a pencil?
---____________________. 
  
2. ---What’s that, Rose?
---____________________.

3. ---Is this your book?
---____________________. It’s his book.

4.-- -Is that your ruler, Linda?
---Yes. My ruler is blue. ______________.

5. ---What’s this in English?
---It’s an eraser.
---____________________?
---E-R-A-S-E-R, eraser.

1. —What's this?
    —It's ________.
2. —Is this a pencil?
    —No, it ________. It's a ________.
3. —Is it a ________? 
    —Yes, it is.
4. —Is it a bag?
    —No, it isn't. It's ________.

1. —Is this a pencil?
    —_____. 
 

2. —What's that, Rose?
    —_____.

3. —Is this your book?
    —_____. It's his book.

4. —Is that your ruler, Linda?
    —Yes. My ruler is blue. _____.

5. —What's this in English?
    —It's an eraser.
    —____________________?
    —E-R-A-S-E-R, eraser.

A.Yes, this is.
B.Yes, this's.
C.Yes, it is.