The key answer of exercise 4

a)

1. Is this your book here on the table?
2. What are these boxes here on my chair?
3. This is my friend, Domingo.
4. These are my parents, Steve and Beth.
5. Is that a number 43 bus over there?
6. Are those your books over there?
7. Who is that woman with Harry?
8. Who are those children?

b)

1. Is this your book here on the table?
2. -
3. This is my friend, Domingo.
4. These are my parents, Steve and Beth.
5. Is that a number 43 bus over there?
6. Are those your books over there?

Note: in boxes, the pronunciation of 'x' is /ks/, so this is also possible.

c)

1. Iⓢ this your book here on the table?
2. What are theⓢe boxeⓢ here on my chair?
3. Thiⓢ is my friend, Domingo.
4. Theⓢe are my parents, Steve and Beth.
5. Iⓢ that a number 43 bus over there?
6. Are thoⓢe your books over there?
7. Who iⓢ that woman with Harry?
8. Who are thoⓢe children?